PREFIX dblp: <https://dblp.org/rdf/schema#>
SELECT ?year WHERE {
  <https://dblp.org/rec/conf/cvpr/GammeterGBQG10> dblp:yearOfPublication ?year
}

The publication 'Server-side object recognition and client-side object tracking for mobile augmented reality' was published in 2010.

[System]
You are a question answering assistant. Your job is to generate a SPARQL query to answer a given user question.

You have access to the following knowledge graphs:
dblp at https://qlever.cs.uni-freiburg.de/api/dblp

You can use the following SPARQL prefixes implicitly in all functions:
bibtex: <http://purl.org/net/nknouf/ns/bibtex#
cito: <http://purl.org/spar/cito/
datacite: <http://purl.org/spar/datacite/
dblp: <https://dblp.org/rdf/schema#
dblps: <https://dblp.org/rdf/schema-2020-07-01#
literal: <http://purl.org/spar/literal/
owl: <http://www.w3.org/2002/07/owl#
rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#
rdfs: <http://www.w3.org/2000/01/rdf-schema#
schema: <http://schema.org/
terms: <http://purl.org/dc/terms/
wd: <http://www.wikidata.org/entity/
wdt: <http://www.wikidata.org/prop/direct/
wikibase: <http://wikiba.se/ontology#
xsd: <http://www.w3.org/2001/XMLSchema#
foaf: <http://xmlns.com/foaf/0.1/
skos: <http://www.w3.org/2004/02/skos/core#
dc: <http://purl.org/dc/elements/1.1/
prov: <http://www.w3.org/ns/prov#
geo: <http://www.opengis.net/ont/geosparql#
geosparql: <http://www.opengis.net/ont/geosparql#
gn: <http://www.geonames.org/ontology#
bd: <http://www.bigdata.com/rdf#
hint: <http://www.bigdata.com/queryHints#
qb: <http://purl.org/linked-data/cube#
void: <http://rdfs.org/ns/void#

You should follow a step-by-step approach to generate the SPARQL query:
1. Determine possible entities and properties implied by the user question.
2. Use the functions to search for entities and properties in the knowledge graphs. Where applicable, constrain the searches with already identified entities and properties.
3. Gradually build up the SPARQL query using the identified entities and properties. Start with simple queries and add more complexity as needed. Use the execute function to get feedback on intermediate queries. You can go back and forth between knowledge graph searches and SPARQL query executions to refine the query.
4. Use the answer or cancel function to finalize your answer and stop the generation process.

Additional rules:
1. Explain your thought process before and after each step and function call.
2. Do not assume or make up any entities or properties without verifying them with the knowledge graphs and functions.
3. The SPARQL query should always return the actual identifiers / IRIs of the items in its result. It additionally may return labels or other human-readable information, but they are optional and should be put within optional clauses unless explicitly requested by the user.
4. Do not stop early if there are still obvious improvements to be made to the SPARQL query. For example, keep refining your SPARQL query if its result contains irrelevant items or is missing items you expected.
5. Do not perform additional computation (e.g. filtering, sorting, calculations) on the result of the SPARQL query to determine the answer. All computation should be done solely within SPARQL.
6. For questions with a "True" or "False" answer the SPARQL query should be an ASK query.
7. Do not use 'SERVICE wikibase:label { bd:serviceParam wikibase:language ...' in SPARQL queries. It is not SPARQL standard and unsupported by the used QLever SPARQL endpoints. Use rdfs:label or similar properties to get labels instead.

[User] What year was 'Server-side object recognition and client-side object tracking for mobile augmented reality' published?

[Assistant]
To answer this question, I need to:

1. Identify the entity for the publication "Server-side object recognition and client-side object tracking for mobile augmented reality" in the DBLP knowledge graph.
2. Find the property that indicates the publication year for a publication.
3. Write a SPARQL query to retrieve the publication year.

First, I will search for the publication entity by its title.

[Tool]
Top 10 entity alternatives:
1. Stephan Gammeter et al.: Server-...mobile augmented reality. (2010) (<https://dblp.org/rec/conf/cvpr/GammeterGBQG10>)
2. Yassine Lehiani et al.: Object i...mobile augmented reality. (2015) (<https://dblp.org/rec/conf/icsipa/LehianiPMG15>)
3. Wolfgang Hürst and Joris Dekker:...mobile augmented reality. (2013) (<https://dblp.org/rec/conf/mm/HurstD13>)
4. Kittipat Apicharttrisorn et al.:...mobile augmented reality. (2019) (<https://dblp.org/rec/conf/sensys/Apicharttrisorn19>)
5. Rodrigo L. S. Silva et al.: Obje...ugmented Reality Systems. (2005) (<https://dblp.org/rec/conf/iv/SilvaRGC05>)
6. Jaewon Ha et al.: Scalable recog...mobile augmented reality. (2010) (<https://dblp.org/rec/conf/vrcai/HaCY10>)
7. Pengfei Han and Gang Zhao: CAD-b...mobile augmented reality. (2015) (<https://dblp.org/rec/journals/cg/HanZ15>)
8. Nohyoung Park et al.: Barcode-As...Mobile Augmented Reality. (2011) (<https://dblp.org/rec/conf/isuvr/ParkLW11>)
9. Oliver Beren Kaul et al.: Mobile... with Visual Impairments. (2021) (<https://dblp.org/rec/conf/chi/KaulBR21>)
10. Ulrich Neumann and Jun Park: Ext...ng for augmented reality. (1998) (<https://dblp.org/rec/conf/vr/NeumannP98>)

[Assistant]
The top search result matches the title exactly: "Stephan Gammeter et al.: Server-side object recognition and client-side object tracking for mobile augmented reality. (2010)" with the IRI <https://dblp.org/rec/conf/cvpr/GammeterGBQG10>.

Now, I need to find the property that indicates the publication year for a publication in DBLP. I will search for properties related to "year".

[Tool]
Top 10 property alternatives:
1. year of event (dblp:yearOfEvent): The year the conference or workshop contribution has been presented., Publication
2. year of publication (dblp:yearOfPublication): The year the publication's issue or volume has been published., Publication
3. published in (dblp:publishedIn): The name of the series, the journal, or the book in which the pu...journals and conference series are modelled as proper entities.), Publication
4. month of publication (dblp:monthOfPublication): The month the publication has been published., Publication
5. published by (dblp:publishedBy): The publisher of the publication. (Remark: This property current...string values until publishers are modelled as proper entities.), Publication
6. issn (dblp:issn): An International Standard Serial Number., identifier, Stream
7. title (dblp:title): The title of the publication., Publication
8. published in series (dblp:publishedInSeries): The name of the series in which the publication has been publish...journals and conference series are modelled as proper entities.), Publication, publishedIn
9. authored by (dblp:authoredBy): The publication is authored by the creator., Publication, createdBy, Creator
10. published as part of (dblp:publishedAsPartOf): The publication has been published as a part of the other publication., Publication

[Assistant]
The most relevant property for the publication year is dblp:yearOfPublication.

Now, I will write a SPARQL query to retrieve the year of publication for the entity <https://dblp.org/rec/conf/cvpr/GammeterGBQG10> using the dblp:yearOfPublication property.

[Tool]
Got 1 row and 1 column:
| year             |
| ---------------- |
| 2010 (xsd:gYear) |

[Tool] Stopped generation process

[User]
Feedback (status=done):
The SPARQL query directly retrieves the year of publication for the specified paper using its IRI and the correct property (dblp:yearOfPublication). The answer matches the query result, and the query follows all required guidelines. No further refinement is needed.


PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>
PREFIX dblp: <https://dblp.org/rdf/schema#>
SELECT DISTINCT ?author ?authorLabel WHERE {
  ?paper dblp:publishedInStream <https://dblp.org/streams/conf/aspdac> ; dblp:yearOfPublication "1997" ^^ xsd:gYear ; dblp:title ?title ; dblp:authoredBy ?author .
  FILTER ( CONTAINS( LCASE( STR( ?title ) ) , "decision diagram" ) ) OPTIONAL {
    ?author rdfs:label ?authorLabel
  }
}

Got 3 rows and 2 columns:
| author                                                   | authorLabel       |
| -------------------------------------------------------- | ----------------- |
| Reinhard Enders (<https://dblp.org/pid/93/912>)          | Reinhard Enders   |
| Bernd Becker 0001 (<https://dblp.org/pid/b/BerndBecker>) | Bernd Becker 0001 |
| Rolf Drechsler (<https://dblp.org/pid/d/RolfDrechsler>)  | Rolf Drechsler    |

The authors who published papers about Decision diagrams at ASP-DAC in 1997 are:
- Reinhard Enders (https://dblp.org/pid/93/912)
- Bernd Becker 0001 (https://dblp.org/pid/b/BerndBecker)
- Rolf Drechsler (https://dblp.org/pid/d/RolfDrechsler)

[System]
You are a question answering assistant. Your job is to generate a SPARQL query to answer a given user question.

You have access to the following knowledge graphs:
dblp at https://qlever.cs.uni-freiburg.de/api/dblp

You can use the following SPARQL prefixes implicitly in all functions:
bibtex: <http://purl.org/net/nknouf/ns/bibtex#
cito: <http://purl.org/spar/cito/
datacite: <http://purl.org/spar/datacite/
dblp: <https://dblp.org/rdf/schema#
dblps: <https://dblp.org/rdf/schema-2020-07-01#
literal: <http://purl.org/spar/literal/
owl: <http://www.w3.org/2002/07/owl#
rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#
rdfs: <http://www.w3.org/2000/01/rdf-schema#
schema: <http://schema.org/
terms: <http://purl.org/dc/terms/
wd: <http://www.wikidata.org/entity/
wdt: <http://www.wikidata.org/prop/direct/
wikibase: <http://wikiba.se/ontology#
xsd: <http://www.w3.org/2001/XMLSchema#
foaf: <http://xmlns.com/foaf/0.1/
skos: <http://www.w3.org/2004/02/skos/core#
dc: <http://purl.org/dc/elements/1.1/
prov: <http://www.w3.org/ns/prov#
geo: <http://www.opengis.net/ont/geosparql#
geosparql: <http://www.opengis.net/ont/geosparql#
gn: <http://www.geonames.org/ontology#
bd: <http://www.bigdata.com/rdf#
hint: <http://www.bigdata.com/queryHints#
qb: <http://purl.org/linked-data/cube#
void: <http://rdfs.org/ns/void#

You should follow a step-by-step approach to generate the SPARQL query:
1. Determine possible entities and properties implied by the user question.
2. Use the functions to search for entities and properties in the knowledge graphs. Where applicable, constrain the searches with already identified entities and properties.
3. Gradually build up the SPARQL query using the identified entities and properties. Start with simple queries and add more complexity as needed. Use the execute function to get feedback on intermediate queries. You can go back and forth between knowledge graph searches and SPARQL query executions to refine the query.
4. Use the answer or cancel function to finalize your answer and stop the generation process.

Additional rules:
1. Explain your thought process before and after each step and function call.
2. Do not assume or make up any entities or properties without verifying them with the knowledge graphs and functions.
3. The SPARQL query should always return the actual identifiers / IRIs of the items in its result. It additionally may return labels or other human-readable information, but they are optional and should be put within optional clauses unless explicitly requested by the user.
4. Do not stop early if there are still obvious improvements to be made to the SPARQL query. For example, keep refining your SPARQL query if its result contains irrelevant items or is missing items you expected.
5. Do not perform additional computation (e.g. filtering, sorting, calculations) on the result of the SPARQL query to determine the answer. All computation should be done solely within SPARQL.
6. For questions with a "True" or "False" answer the SPARQL query should be an ASK query.
7. Do not use 'SERVICE wikibase:label { bd:serviceParam wikibase:language ...' in SPARQL queries. It is not SPARQL standard and unsupported by the used QLever SPARQL endpoints. Use rdfs:label or similar properties to get labels instead.

[User] In 1997 in ASP-DAC, who are the authors that published papers about Decision diagrams?

[Assistant]
Let's break down the question:

1. We are looking for authors.
2. The authors must have published papers in ASP-DAC (Asia and South Pacific Design Automation Conference).
3. The papers must be from 1997.
4. The papers must be about "Decision diagrams".

Step 1: Find the entity for ASP-DAC in the dblp knowledge graph.

I'll search for "ASP-DAC" to find the correct entity.

[Tool]
Top 10 entity alternatives:
1. Hidetoshi Onodera: 2016 ASP-DAC. (2016) (<https://dblp.org/rec/journals/dt/Onodera16>)
2. Asia and South Pacific Design Automation Conference (ASP-DAC) (<https://dblp.org/streams/conf/aspdac>)
3. Atsushi Takahara: ASP-DAC 2015 k... II programmable network. (2015) (<https://dblp.org/rec/conf/aspdac/Takahara15>)
4. John Rogers: ASP-DAC 2017 keynot...onics for the human body. (2017) (<https://dblp.org/rec/conf/aspdac/Rogers17>)
5. Youngsoo Shin: Recap of the 23rd...ion Conference (ASP-DAC). (2018) (<https://dblp.org/rec/journals/dt/Shin18>)
6. Hiroto Yasuura: ASP-DAC 2017 key...nd digital system design. (2017) (<https://dblp.org/rec/conf/aspdac/Yasuura17>)
7. Proceedings of ASP-DAC 2000, Asi...nce 2000, Yokohama, Japan (2000) (<https://dblp.org/rec/conf/aspdac/2000>)
8. 19th Asia and South Pacific Desi...pore, January 20-23, 2014 (2014) (<https://dblp.org/rec/conf/aspdac/2014>)
9. 27th Asia and South Pacific Desi...iwan, January 17-20, 2022 (2022) (<https://dblp.org/rec/conf/aspdac/2022>)
10. 25th Asia and South Pacific Desi...hina, January 13-16, 2020 (2020) (<https://dblp.org/rec/conf/aspdac/2020>)

[Assistant]
The correct entity for ASP-DAC as a conference series is:
- Asia and South Pacific Design Automation Conference (ASP-DAC) (<https://dblp.org/streams/conf/aspdac>)

Next, I need to find papers from ASP-DAC in 1997. Let's see if there is a specific entity for the 1997 edition, or if papers are linked to the conference series with a year property.

I'll search for "ASP-DAC 1997" to find the specific event or proceedings.

[Tool]
Top 10 entity alternatives:
1. Dedication. (1997) (<https://dblp.org/rec/journals/entcs/X97>)
2. Erratum. (1997) (<https://dblp.org/rec/journals/aiedam/X97>)
3. Erratum. (1997) (<https://dblp.org/rec/journals/ida/X97>)
4. Erratum. (1997) (<https://dblp.org/rec/journals/mima/X97b>)
5. Dissertations. (1997) (<https://dblp.org/rec/journals/sigchi/X97a>)
6. Editorial. (1997) (<https://dblp.org/rec/journals/jitech/X97>)
7. Editorial. (1997) (<https://dblp.org/rec/journals/isj/X97a>)
8. Editorial. (1997) (<https://dblp.org/rec/journals/isj/X97>)
9. Announcement. (1997) (<https://dblp.org/rec/journals/alr/X97>)
10. Announcement. (1997) (<https://dblp.org/rec/journals/alr/X97b>)

[Assistant]
It appears that searching for "ASP-DAC 1997" did not directly return the proceedings or event entity for that year. Since the conference series entity is available, papers may be linked to it with a year property.

Next, I will search for properties related to "year" or "date" to filter papers from 1997.

[Tool]
Top 10 property alternatives:
1. year of event (dblp:yearOfEvent): The year the conference or workshop contribution has been presented., Publication
2. year of publication (dblp:yearOfPublication): The year the publication's issue or volume has been published., Publication
3. published in (dblp:publishedIn): The name of the series, the journal, or the book in which the pu...journals and conference series are modelled as proper entities.), Publication
4. month of publication (dblp:monthOfPublication): The month the publication has been published., Publication
5. published by (dblp:publishedBy): The publisher of the publication. (Remark: This property current...string values until publishers are modelled as proper entities.), Publication
6. issn (dblp:issn): An International Standard Serial Number., identifier, Stream
7. title (dblp:title): The title of the publication., Publication
8. published in series (dblp:publishedInSeries): The name of the series in which the publication has been publish...journals and conference series are modelled as proper entities.), Publication, publishedIn
9. authored by (dblp:authoredBy): The publication is authored by the creator., Publication, createdBy, Creator
10. published as part of (dblp:publishedAsPartOf): The publication has been published as a part of the other publication., Publication

[Assistant]
The relevant properties for filtering papers are:
- dblp:publishedIn (to link papers to the conference series)
- dblp:yearOfPublication (to filter by year)
- dblp:authoredBy (to get the authors)

Now, I need to find papers about "Decision diagrams". I'll search for properties related to "topic", "subject", or "keyword" to see how topics are represented in dblp.

[Tool]
Top 10 property alternatives:
1. published in (dblp:publishedIn): The name of the series, the journal, or the book in which the pu...journals and conference series are modelled as proper entities.), Publication
2. stream title (dblp:streamTitle): A title of the stream., Stream
3. authored by (dblp:authoredBy): The publication is authored by the creator., Publication, createdBy, Creator
4. published as part of (dblp:publishedAsPartOf): The publication has been published as a part of the other publication., Publication
5. published by (dblp:publishedBy): The publisher of the publication. (Remark: This property current...string values until publishers are modelled as proper entities.), Publication
6. title (dblp:title): The title of the publication., Publication
7. published in journal (dblp:publishedInJournal): The name of the journal in which the publication has been publis...journals and conference series are modelled as proper entities.), publishedIn, Publication
8. webpage (dblp:webpage): The URL of a web page about this item., Entity
9. year of publication (dblp:yearOfPublication): The year the publication's issue or volume has been published., Publication
10. published in stream (dblp:publishedInStream): The conference series, the journal, or the repository in which the publication has been published., Publication, Stream

[Assistant]
There doesn't seem to be a direct "topic" or "keyword" property in the top results. However, dblp:title is available, and often, topics can be filtered by searching for keywords in the title.

So, to find papers about "Decision diagrams", I can filter papers whose titles contain "Decision diagram".

Now, I'll put this together:
- Find papers published in ASP-DAC (dblp:publishedIn = ASP-DAC entity)
- Year of publication = 1997 (dblp:yearOfPublication = 1997)
- Title contains "Decision diagram"
- Get the authors (dblp:authoredBy)

First, let's check the structure of papers linked to the ASP-DAC conference series entity and how the year and title are represented. I'll list some triples for the ASP-DAC entity.

[Tool]
Got 11 rows and 3 columns, showing the first 10 rows below:
| subject                                                                                | property                                     | object                                                        |
| ------------------------------------------------------------------------------------------------------ | -------------------------------------------- | ------------------------------------------------------------- |
| Asia and South Pacific Design Automation Conference (ASP-DAC) (<https://dblp.org/streams/conf/aspdac>) | wikidata (dblp:wikidata)                     | wd:Q4806492                                                   |
| Asia and South Pacific Design Automation Conference (ASP-DAC) (<https://dblp.org/streams/conf/aspdac>) | webpage (dblp:webpage)                       | <http://www.aspdac.com/>                                      |
| Asia and South Pacific Design Automation Conference (ASP-DAC) (<https://dblp.org/streams/conf/aspdac>) | streamTitle (dblp:streamTitle)               | Asia and South Pacific Design Automation Conference (ASP-DAC) |
| Asia and South Pacific Design Automation Conference (ASP-DAC) (<https://dblp.org/streams/conf/aspdac>) | indexPage (dblp:indexPage)                   | <https://dblp.org/db/conf/aspdac/index>                       |
| Asia and South Pacific Design Automation Conference (ASP-DAC) (<https://dblp.org/streams/conf/aspdac>) | primaryStreamTitle (dblp:primaryStreamTitle) | Asia and South Pacific Design Automation Conference (ASP-DAC) |
| Asia and South Pacific Design Automation Conference (ASP-DAC) (<https://dblp.org/streams/conf/aspdac>) | rdf:type                                     | Conference (dblp:Conference)                                  |
| Asia and South Pacific Design Automation Conference (ASP-DAC) (<https://dblp.org/streams/conf/aspdac>) | datacite:hasIdentifier                       | _:bn40536501                                                  |
| Asia and South Pacific Design Automation Conference (ASP-DAC) (<https://dblp.org/streams/conf/aspdac>) | rdfs:label                                   | Asia and South Pacific Design Automation Conference (ASP-DAC) |
| Asia and South Pacific Design Automation Conference (ASP-DAC) (<https://dblp.org/streams/conf/aspdac>) | owl:sameAs                                   | wd:Q4806492                                                   |
| Asia and South Pacific Design Automation Conference (ASP-DAC) (<https://dblp.org/streams/conf/aspdac>) | rdf:type                                     | Stream (dblp:Stream)                                          |
| ...                                                                                | ...                                          | ...                                                           |

[Assistant]
The ASP-DAC conference series entity is of type dblp:Conference and dblp:Stream. However, it does not directly list papers as objects. Instead, papers likely reference the conference via the dblp:publishedIn or dblp:publishedInStream property.

Let's check how papers reference the ASP-DAC conference series by listing triples with property dblp:publishedIn and object as the ASP-DAC entity.

[Tool] Got no rows and 3 columns

[Assistant]
It appears that no papers directly use dblp:publishedIn with the ASP-DAC conference series entity as the object. There may be a different property or a more specific proceedings entity for each year.

Let's try listing triples with the property dblp:publishedInStream and object as the ASP-DAC entity, as this property was also suggested for linking publications to streams.

[Tool]
Got 4,492 rows and 3 columns, showing the first 10 rows below:
| subject                                                                                | property                                   | object                                                                                |
| ------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------ | ------------------------------------------------------------------------------------------------------ |
| Dac C. Pham et al.: Key features...eneration CELL processor. (2006) (<https://dblp.org/rec/conf/aspdac/PhamABBGHHJKKKLLNPPPPRVWWW06>) | publishedInStream (dblp:publishedInStream) | Asia and South Pacific Design Automation Conference (ASP-DAC) (<https://dblp.org/streams/conf/aspdac>) |
| Xingquan Li et al.: iPD: An Open...hysical Design Toolchain. (2024) (<https://dblp.org/rec/conf/aspdac/LiTCZ0WLHNZLLLL24>)            | publishedInStream (dblp:publishedInStream) | Asia and South Pacific Design Automation Conference (ASP-DAC) (<https://dblp.org/streams/conf/aspdac>) |
| Xingquan Li et al.: iEDA: An Ope...ce infrastructure of EDA. (2024) (<https://dblp.org/rec/conf/aspdac/LiHT0ZWLQLLSCBZ24>)            | publishedInStream (dblp:publishedInStream) | Asia and South Pacific Design Automation Conference (ASP-DAC) (<https://dblp.org/streams/conf/aspdac>) |
| Sitao Huang et al.: Mixed Precis...N Inference Accelerators. (2021) (<https://dblp.org/rec/conf/aspdac/HuangASACHKABSX21>)            | publishedInStream (dblp:publishedInStream) | Asia and South Pacific Design Automation Conference (ASP-DAC) (<https://dblp.org/streams/conf/aspdac>) |
| Noriyuki Ito et al.: Delay defec...z SPARC64 microprocessor. (2006) (<https://dblp.org/rec/conf/aspdac/ItoKMYMSEYKIAHNSN06>)          | publishedInStream (dblp:publishedInStream) | Asia and South Pacific Design Automation Conference (ASP-DAC) (<https://dblp.org/streams/conf/aspdac>) |
| Noriyuki Ito et al.: Diagonal ro...ce microprocessor design. (2006) (<https://dblp.org/rec/conf/aspdac/ItoKYISKTYNIAMIS06>)           | publishedInStream (dblp:publishedInStream) | Asia and South Pacific Design Automation Conference (ASP-DAC) (<https://dblp.org/streams/conf/aspdac>) |
| Chenxin Liu et al.: A D-Band CMO...h 4?4 Line-of-Sight MIMO. (2025) (<https://dblp.org/rec/conf/aspdac/Liu0YHWTSNFKWHH25>)            | publishedInStream (dblp:publishedInStream) | Asia and South Pacific Design Automation Conference (ASP-DAC) (<https://dblp.org/streams/conf/aspdac>) |
| Lei Zhao et al.: Geyser-2: The s...ed run-time power gating. (2011) (<https://dblp.org/rec/conf/aspdac/ZhaoISKSKAKHUMUKNTNK11>)       | publishedInStream (dblp:publishedInStream) | Asia and South Pacific Design Automation Conference (ASP-DAC) (<https://dblp.org/streams/conf/aspdac>) |
| Takayuki Kamei et al.: 300MHz de...VU for emotion synthesis. (2000) (<https://dblp.org/rec/conf/aspdac/KameiTOSTKNISMIEAK00>)         | publishedInStream (dblp:publishedInStream) | Asia and South Pacific Design Automation Conference (ASP-DAC) (<https://dblp.org/streams/conf/aspdac>) |
| Daisuke Ikebuchi et al.: Geyser-...ed run-time power gating. (2010) (<https://dblp.org/rec/conf/aspdac/IkebuchiSKKZASKHUMUTNNK10>)    | publishedInStream (dblp:publishedInStream) | Asia and South Pacific Design Automation Conference (ASP-DAC) (<https://dblp.org/streams/conf/aspdac>) |
| ...                                                                                | ...                                        | ...                                                                                |

[Assistant]
Now we know that papers published in ASP-DAC can be found by filtering for dblp:publishedInStream with the ASP-DAC entity.

Next, I need to filter these papers by year (1997) and by title containing "Decision diagram". Let's check the structure of a paper entity to see how year and title are represented. I'll list triples for one of the paper entities from the previous result.

[Tool]
Got 99 rows and 3 columns, showing the first 10 rows below:
| subject                                                                                | property                                   | object                                                                                |
| ------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------ | ------------------------------------------------------------------------------------------------------ |
| Dac C. Pham et al.: Key features...eneration CELL processor. (2006) (<https://dblp.org/rec/conf/aspdac/PhamABBGHHJKKKLLNPPPPRVWWW06>) | hasSignature (dblp:hasSignature)           | _:bn10630492                                                                                |
| Dac C. Pham et al.: Key features...eneration CELL processor. (2006) (<https://dblp.org/rec/conf/aspdac/PhamABBGHHJKKKLLNPPPPRVWWW06>) | createdBy (dblp:createdBy)                 | H. Peter Hofstee (<https://dblp.org/pid/67/1067>)                                                      |
| Dac C. Pham et al.: Key features...eneration CELL processor. (2006) (<https://dblp.org/rec/conf/aspdac/PhamABBGHHJKKKLLNPPPPRVWWW06>) | authoredBy (dblp:authoredBy)               | H. Peter Hofstee (<https://dblp.org/pid/67/1067>)                                                      |
| Dac C. Pham et al.: Key features...eneration CELL processor. (2006) (<https://dblp.org/rec/conf/aspdac/PhamABBGHHJKKKLLNPPPPRVWWW06>) | publishedInStream (dblp:publishedInStream) | Asia and South Pacific Design Automation Conference (ASP-DAC) (<https://dblp.org/streams/conf/aspdac>) |
| Dac C. Pham et al.: Key features...eneration CELL processor. (2006) (<https://dblp.org/rec/conf/aspdac/PhamABBGHHJKKKLLNPPPPRVWWW06>) | documentPage (dblp:documentPage)           | <https://doi.org/10.1109/ASPDAC.2006.1594796>                                                          |
| Dac C. Pham et al.: Key features...eneration CELL processor. (2006) (<https://dblp.org/rec/conf/aspdac/PhamABBGHHJKKKLLNPPPPRVWWW06>) | bibtexType (dblp:bibtexType)               | bibtex:Inproceedings                                                                                |
| Dac C. Pham et al.: Key features...eneration CELL processor. (2006) (<https://dblp.org/rec/conf/aspdac/PhamABBGHHJKKKLLNPPPPRVWWW06>) | numberOfCreators (dblp:numberOfCreators)   | 23 (xsd:int)                                                                                |
| Dac C. Pham et al.: Key features...eneration CELL processor. (2006) (<https://dblp.org/rec/conf/aspdac/PhamABBGHHJKKKLLNPPPPRVWWW06>) | title (dblp:title)                         | Key features of the design metho...first-generation CELL processor.                                    |
| Dac C. Pham et al.: Key features...eneration CELL processor. (2006) (<https://dblp.org/rec/conf/aspdac/PhamABBGHHJKKKLLNPPPPRVWWW06>) | yearOfPublication (dblp:yearOfPublication) | 2006 (xsd:gYear)                                                                                |
| Dac C. Pham et al.: Key features...eneration CELL processor. (2006) (<https://dblp.org/rec/conf/aspdac/PhamABBGHHJKKKLLNPPPPRVWWW06>) | listedOnTocPage (dblp:listedOnTocPage)     | <https://dblp.org/db/conf/aspdac/aspdac2006>                                                           |
| ...                                                                                | ...                                        | ...                                                                                |

[Assistant]
From the structure, we see:
- dblp:yearOfPublication gives the year (as xsd:gYear)
- dblp:title gives the title (as a literal)
- dblp:authoredBy gives the author (as an IRI)

Now, I will construct a SPARQL query that:
1. Selects papers with dblp:publishedInStream ASP-DAC,
2. Filters for dblp:yearOfPublication 1997,
3. Filters for dblp:title containing "Decision diagram",
4. Returns the authors (dblp:authoredBy).

I'll also return the author label if available, but as optional.

[Tool]
Got 3 rows and 2 columns:
| author                                                   | authorLabel       |
| -------------------------------------------------------- | ----------------- |
| Reinhard Enders (<https://dblp.org/pid/93/912>)          | Reinhard Enders   |
| Bernd Becker 0001 (<https://dblp.org/pid/b/BerndBecker>) | Bernd Becker 0001 |
| Rolf Drechsler (<https://dblp.org/pid/d/RolfDrechsler>)  | Rolf Drechsler    |

[Tool] Stopped generation process

[User]
Feedback (status=done):
The SPARQL query correctly retrieves all authors who published papers about 'Decision diagrams' at ASP-DAC in 1997 by filtering on the conference, year, and paper title. It also returns the required IRIs and optionally includes human-readable labels. The answer matches the query result and is complete. No further refinement is needed.


PREFIX dblp: <https://dblp.org/rdf/schema#>
ASK WHERE {
  <https://dblp.org/rec/conf/random/HallLS03> dblp:authoredBy <https://dblp.org/pid/80/2691>
}

Yes, Martin Skutella has published the paper 'An FPTAS for Quickest Multicommodity Flows with Inflow-Dependent Transit Times'.

[System]
You are a question answering assistant. Your job is to generate a SPARQL query to answer a given user question.

You have access to the following knowledge graphs:
dblp at https://qlever.cs.uni-freiburg.de/api/dblp

You can use the following SPARQL prefixes implicitly in all functions:
bibtex: <http://purl.org/net/nknouf/ns/bibtex#
cito: <http://purl.org/spar/cito/
datacite: <http://purl.org/spar/datacite/
dblp: <https://dblp.org/rdf/schema#
dblps: <https://dblp.org/rdf/schema-2020-07-01#
literal: <http://purl.org/spar/literal/
owl: <http://www.w3.org/2002/07/owl#
rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#
rdfs: <http://www.w3.org/2000/01/rdf-schema#
schema: <http://schema.org/
terms: <http://purl.org/dc/terms/
wd: <http://www.wikidata.org/entity/
wdt: <http://www.wikidata.org/prop/direct/
wikibase: <http://wikiba.se/ontology#
xsd: <http://www.w3.org/2001/XMLSchema#
foaf: <http://xmlns.com/foaf/0.1/
skos: <http://www.w3.org/2004/02/skos/core#
dc: <http://purl.org/dc/elements/1.1/
prov: <http://www.w3.org/ns/prov#
geo: <http://www.opengis.net/ont/geosparql#
geosparql: <http://www.opengis.net/ont/geosparql#
gn: <http://www.geonames.org/ontology#
bd: <http://www.bigdata.com/rdf#
hint: <http://www.bigdata.com/queryHints#
qb: <http://purl.org/linked-data/cube#
void: <http://rdfs.org/ns/void#

You should follow a step-by-step approach to generate the SPARQL query:
1. Determine possible entities and properties implied by the user question.
2. Use the functions to search for entities and properties in the knowledge graphs. Where applicable, constrain the searches with already identified entities and properties.
3. Gradually build up the SPARQL query using the identified entities and properties. Start with simple queries and add more complexity as needed. Use the execute function to get feedback on intermediate queries. You can go back and forth between knowledge graph searches and SPARQL query executions to refine the query.
4. Use the answer or cancel function to finalize your answer and stop the generation process.

Additional rules:
1. Explain your thought process before and after each step and function call.
2. Do not assume or make up any entities or properties without verifying them with the knowledge graphs and functions.
3. The SPARQL query should always return the actual identifiers / IRIs of the items in its result. It additionally may return labels or other human-readable information, but they are optional and should be put within optional clauses unless explicitly requested by the user.
4. Do not stop early if there are still obvious improvements to be made to the SPARQL query. For example, keep refining your SPARQL query if its result contains irrelevant items or is missing items you expected.
5. Do not perform additional computation (e.g. filtering, sorting, calculations) on the result of the SPARQL query to determine the answer. All computation should be done solely within SPARQL.
6. For questions with a "True" or "False" answer the SPARQL query should be an ASK query.
7. Do not use 'SERVICE wikibase:label { bd:serviceParam wikibase:language ...' in SPARQL queries. It is not SPARQL standard and unsupported by the used QLever SPARQL endpoints. Use rdfs:label or similar properties to get labels instead.

[User] Has Martin Skutella not not published the paper 'An FPTAS for Quickest Multicommodity Flows with Inflow-Dependent Transit Times'?

[Assistant]
Let's break down the question:

- The question is a double negative: "Has Martin Skutella not not published the paper ...?" This is logically equivalent to asking: "Has Martin Skutella published the paper ...?"

So, the task is to check if Martin Skutella is an author of the paper titled "An FPTAS for Quickest Multicommodity Flows with Inflow-Dependent Transit Times".

Step 1: Find the entity for Martin Skutella in DBLP.
Step 2: Find the entity for the paper with the given title.
Step 3: Check if Martin Skutella is an author of that paper.

Let's start by searching for "Martin Skutella" in DBLP.

[Tool]
Top 10 entity alternatives:
1. Martin Skutella, also known as Martin Skutella (<https://dblp.org/pid/80/2691>)
2. Christos Kaklamanis and Martin Skutella: Preface. (2011) (<https://dblp.org/rec/journals/tcs/KaklamanisS11>)
3. Quentin Louveaux and Martin Skutella: Preface. (2018) (<https://dblp.org/rec/journals/mp/LouveauxS18>)
4. Martin Skutella: Convex Quadratic Programming in Scheduling. (2015) (<https://dblp.org/rec/books/sp/15/Skutella15>)
5. Martín Martín-González, also known as Martín Martín-González (<https://dblp.org/pid/174/6870>)
6. Martin Martinelli, also known as Martin Martinelli (<https://dblp.org/pid/308/4205>)
7. Martin Martinez, also known as Martin Martinez (<https://dblp.org/pid/144/4889>)
8. Martin Martinez-Salvador, also known as Martin Martinez-Salvador (<https://dblp.org/pid/216/0725>)
9. Martin, also known as Martin (<https://dblp.org/pid/232/3822>)
10. Martin Vetterli, also known as Martin Vetterli (<https://dblp.org/pid/v/MVetterli>)

[Assistant]
The top result for "Martin Skutella" is the entity <https://dblp.org/pid/80/2691>. This is likely the correct author.

Next, I will search for the paper titled "An FPTAS for Quickest Multicommodity Flows with Inflow-Dependent Transit Times" in DBLP to find its entity.

[Tool]
Top 10 entity alternatives:
1. Alexander Hall et al.: An FPTAS ...-Dependent Transit Times. (2003) (<https://dblp.org/rec/conf/random/HallLS03>)
2. Alexander Hall et al.: An FPTAS ...-Dependent Transit Times. (2007) (<https://dblp.org/rec/journals/algorithmica/HallLS07>)
3. Ekkehard Köhler and Martin Skute...-Dependent Transit Times. (2005) (<https://dblp.org/rec/journals/siamjo/KohlerS05>)
4. Ekkehard Köhler and Martin Skute...-dependent transit times. (2002) (<https://dblp.org/rec/conf/soda/KohlerS02>)
5. Lisa Fleischer: Faster Algorithm... with Zero Transit Times. (1998) (<https://dblp.org/rec/conf/soda/Fleischer98>)
6. Anya Chaturvedi et al.: Improved...s With Arbitrary Demands. (2024) (<https://dblp.org/rec/journals/ton/ChaturvediCLRRSW24>)
7. Anya Chaturvedi et al.: Improved...s with Arbitrary Demands. (2022) (<https://dblp.org/rec/journals/sigmetrics/ChaturvediCRRSW22>)
8. Nadine Baumann and Ekkehard Köhl...-Dependent Transit Times. (2004) (<https://dblp.org/rec/conf/mfcs/BaumannK04>)
9. Daniel Dressler and Martin Skute...Aggregate Arc Capacities. (2010) (<https://dblp.org/rec/conf/waoa/DresslerS10>)
10. Nadine Baumann and Ekkehard Köhl...-dependent transit times. (2007) (<https://dblp.org/rec/journals/dam/BaumannK07>)

[Assistant]
There are two strong candidates for the paper entity based on the title:

1. Alexander Hall et al.: An FPTAS ...-Dependent Transit Times. (2003) (<https://dblp.org/rec/conf/random/HallLS03>)
2. Alexander Hall et al.: An FPTAS ...-Dependent Transit Times. (2007) (<https://dblp.org/rec/journals/algorithmica/HallLS07>)

Both have truncated titles, but match the beginning of the requested title. To be thorough, I will check both entities to see if Martin Skutella (<https://dblp.org/pid/80/2691>) is listed as an author.

Let's first check the authors of the 2003 conference paper.

[Tool]
Got 34 rows and 3 columns, showing the first 10 rows below:
| subject                                                                                | property                                   | object                                                                            |
| ----------------------------------------------------------------------------------------------------------------- | ------------------------------------------ | --------------------------------------------------------------------------------- |
| Alexander Hall et al.: An FPTAS ...-Dependent Transit Times. (2003) (<https://dblp.org/rec/conf/random/HallLS03>) | hasSignature (dblp:hasSignature)           | _:bn45783875                                                                      |
| Alexander Hall et al.: An FPTAS ...-Dependent Transit Times. (2003) (<https://dblp.org/rec/conf/random/HallLS03>) | createdBy (dblp:createdBy)                 | Martin Skutella (<https://dblp.org/pid/80/2691>)                                  |
| Alexander Hall et al.: An FPTAS ...-Dependent Transit Times. (2003) (<https://dblp.org/rec/conf/random/HallLS03>) | authoredBy (dblp:authoredBy)               | Martin Skutella (<https://dblp.org/pid/80/2691>)                                  |
| Alexander Hall et al.: An FPTAS ...-Dependent Transit Times. (2003) (<https://dblp.org/rec/conf/random/HallLS03>) | publishedInStream (dblp:publishedInStream) | Lecture Notes in Computer Science (LNCS) (<https://dblp.org/streams/series/lncs>) |
| Alexander Hall et al.: An FPTAS ...-Dependent Transit Times. (2003) (<https://dblp.org/rec/conf/random/HallLS03>) | documentPage (dblp:documentPage)           | <https://doi.org/10.1007/978-3-540-45198-3_7>                                     |
| Alexander Hall et al.: An FPTAS ...-Dependent Transit Times. (2003) (<https://dblp.org/rec/conf/random/HallLS03>) | bibtexType (dblp:bibtexType)               | bibtex:Inproceedings                                                              |
| Alexander Hall et al.: An FPTAS ...-Dependent Transit Times. (2003) (<https://dblp.org/rec/conf/random/HallLS03>) | numberOfCreators (dblp:numberOfCreators)   | 3 (xsd:int)                                                                       |
| Alexander Hall et al.: An FPTAS ...-Dependent Transit Times. (2003) (<https://dblp.org/rec/conf/random/HallLS03>) | title (dblp:title)                         | An FPTAS for Quickest Multicommo... Inflow-Dependent Transit Times.               |
| Alexander Hall et al.: An FPTAS ...-Dependent Transit Times. (2003) (<https://dblp.org/rec/conf/random/HallLS03>) | yearOfPublication (dblp:yearOfPublication) | 2003 (xsd:gYear)                                                                  |
| Alexander Hall et al.: An FPTAS ...-Dependent Transit Times. (2003) (<https://dblp.org/rec/conf/random/HallLS03>) | listedOnTocPage (dblp:listedOnTocPage)     | <https://dblp.org/db/conf/random/random2003>                                      |
| ...                                                                                | ...                                        | ...                                                                               |

[Assistant]
The 2003 conference paper "An FPTAS for Quickest Multicommodity Flows with Inflow-Dependent Transit Times" (<https://dblp.org/rec/conf/random/HallLS03>) lists Martin Skutella (<https://dblp.org/pid/80/2691>) as an author.

Therefore, Martin Skutella has published the paper in question.

Since the question was "Has Martin Skutella not not published the paper ...?", which is equivalent to "Has Martin Skutella published the paper ...?", the answer is "Yes".

Now, I will provide the final SPARQL query and answer.

[Tool] Stopped generation process

[User]
Feedback (status=done):
The SPARQL query is correct for the user's question. The question, after resolving the double negation, is asking whether Martin Skutella has published the specified paper. The ASK query checks if the given paper is authored by Martin Skutella using their respective IRIs. The answer and the query are consistent, and the query returns the correct boolean result. No further refinement is needed.


PREFIX dblp: <https://dblp.org/rdf/schema#>
ASK {
  ?pub dblp:authoredBy <https://dblp.org/pid/96/277> ; dblp:yearOfPublication 2001 .
}

Yes, Barbara Von Eckardt did not publish in 2001 according to DBLP.

[System]
You are a question answering assistant. Your job is to generate a SPARQL query to answer a given user question.

You have access to the following knowledge graphs:
dblp at https://qlever.cs.uni-freiburg.de/api/dblp

You can use the following SPARQL prefixes implicitly in all functions:
bibtex: <http://purl.org/net/nknouf/ns/bibtex#
cito: <http://purl.org/spar/cito/
datacite: <http://purl.org/spar/datacite/
dblp: <https://dblp.org/rdf/schema#
dblps: <https://dblp.org/rdf/schema-2020-07-01#
literal: <http://purl.org/spar/literal/
owl: <http://www.w3.org/2002/07/owl#
rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#
rdfs: <http://www.w3.org/2000/01/rdf-schema#
schema: <http://schema.org/
terms: <http://purl.org/dc/terms/
wd: <http://www.wikidata.org/entity/
wdt: <http://www.wikidata.org/prop/direct/
wikibase: <http://wikiba.se/ontology#
xsd: <http://www.w3.org/2001/XMLSchema#
foaf: <http://xmlns.com/foaf/0.1/
skos: <http://www.w3.org/2004/02/skos/core#
dc: <http://purl.org/dc/elements/1.1/
prov: <http://www.w3.org/ns/prov#
geo: <http://www.opengis.net/ont/geosparql#
geosparql: <http://www.opengis.net/ont/geosparql#
gn: <http://www.geonames.org/ontology#
bd: <http://www.bigdata.com/rdf#
hint: <http://www.bigdata.com/queryHints#
qb: <http://purl.org/linked-data/cube#
void: <http://rdfs.org/ns/void#

You should follow a step-by-step approach to generate the SPARQL query:
1. Determine possible entities and properties implied by the user question.
2. Use the functions to search for entities and properties in the knowledge graphs. Where applicable, constrain the searches with already identified entities and properties.
3. Gradually build up the SPARQL query using the identified entities and properties. Start with simple queries and add more complexity as needed. Use the execute function to get feedback on intermediate queries. You can go back and forth between knowledge graph searches and SPARQL query executions to refine the query.
4. Use the answer or cancel function to finalize your answer and stop the generation process.

Additional rules:
1. Explain your thought process before and after each step and function call.
2. Do not assume or make up any entities or properties without verifying them with the knowledge graphs and functions.
3. The SPARQL query should always return the actual identifiers / IRIs of the items in its result. It additionally may return labels or other human-readable information, but they are optional and should be put within optional clauses unless explicitly requested by the user.
4. Do not stop early if there are still obvious improvements to be made to the SPARQL query. For example, keep refining your SPARQL query if its result contains irrelevant items or is missing items you expected.
5. Do not perform additional computation (e.g. filtering, sorting, calculations) on the result of the SPARQL query to determine the answer. All computation should be done solely within SPARQL.
6. For questions with a "True" or "False" answer the SPARQL query should be an ASK query.
7. Do not use 'SERVICE wikibase:label { bd:serviceParam wikibase:language ...' in SPARQL queries. It is not SPARQL standard and unsupported by the used QLever SPARQL endpoints. Use rdfs:label or similar properties to get labels instead.

[User] Didn't Eckardt, Barbara Von not publish in 2001?

[Assistant]
Let's break down the question:

- The user is asking if Barbara Von Eckardt did NOT publish in 2001.
- This is a negative question, so the answer should be True if she did not publish in 2001, and False if she did.
- We need to identify the correct entity for "Eckardt, Barbara Von" in DBLP.
- Then, we need to check if there are any publications by her in 2001.

Step 1: Search for the entity "Eckardt, Barbara Von" in DBLP.

[Tool]
Top 10 entity alternatives:
1. Barbara Von Eckardt, also known as Barbara Von Eckardt (<https://dblp.org/pid/96/277>)
2. Barbara Von Eckardt: Multidiscip...ty and cognitive science. (2001) (<https://dblp.org/rec/journals/cogsci/Eckardt01>)
3. Barbara von Wahlde, also known as Barbara von Wahlde (<https://dblp.org/pid/25/3470>)
4. Barbara von Ungern-Sternberg, also known as Barbara von Ungern-Sternberg (<https://dblp.org/pid/212/3070>)
5. Barbara von Rechbach, also known as Barbara von Rechbach (<https://dblp.org/pid/210/6423>)
6. Barbara von Hindenburg, also known as Barbara von Hindenburg (<https://dblp.org/pid/318/5947>)
7. Barbara von Halle, also known as Barbara von Halle (<https://dblp.org/pid/19/2063>)
8. Barbara Kirchberg-Lennartz: Prüfbarkeit von EDV-Systemen. (1991) (<https://dblp.org/rec/phd/dnb/Kirchberg-Lennartz91>)
9. Barbara Janusz: Modellbasierte R...on von Geschäftsprozessen (1998) (<https://dblp.org/rec/phd/basesearch/Janusz98>)
10. Barbara Rapp et al.: Ontologieba...ennutzung von Rohstoffen. (2010) (<https://dblp.org/rec/journals/hmd/RappBSG10>)

[Assistant]
The top result for "Eckardt, Barbara Von" is "Barbara Von Eckardt" with the DBLP IRI: https://dblp.org/pid/96/277. There is also a publication entry for 2001, which suggests she may have published in that year. However, to answer the question definitively, I need to check if there are any publications by this author in 2001.

Next, I will search for publications by this author in 2001.

[Tool]
Got 6 rows and 3 columns:
| subject                                             | property                                     | object                 |
| --------------------------------------------------- | -------------------------------------------- | ---------------------- |
| Barbara Von Eckardt (<https://dblp.org/pid/96/277>) | creatorname (dblp:creatorName)               | Barbara Von Eckardt    |
| Barbara Von Eckardt (<https://dblp.org/pid/96/277>) | primaryCreatorName (dblp:primaryCreatorName) | Barbara Von Eckardt    |
| Barbara Von Eckardt (<https://dblp.org/pid/96/277>) | rdf:type                                     | Creator (dblp:Creator) |
| Barbara Von Eckardt (<https://dblp.org/pid/96/277>) | datacite:hasIdentifier                       | _:bn14332018           |
| Barbara Von Eckardt (<https://dblp.org/pid/96/277>) | rdfs:label                                   | Barbara Von Eckardt    |
| Barbara Von Eckardt (<https://dblp.org/pid/96/277>) | rdf:type                                     | Person (dblp:Person)   |

[Tool]
Top 10 property alternatives:
1. creator name (dblp:creatorName): The full name of the creator., Creator

No other items found

[Tool] Got no rows and 3 columns

[Tool]
Top 10 property alternatives:
1. authored by (dblp:authoredBy): The publication is authored by the creator., Publication, createdBy, Creator
2. published by (dblp:publishedBy): The publisher of the publication. (Remark: This property current...string values until publishers are modelled as proper entities.), Publication
3. edited by (dblp:editedBy): The publication is edited by the creator., Publication, createdBy, Creator
4. published in (dblp:publishedIn): The name of the series, the journal, or the book in which the pu...journals and conference series are modelled as proper entities.), Publication
5. published in book (dblp:publishedInBook): The name of the book in which the publication has been published...journals and conference series are modelled as proper entities.), Publication, publishedIn
6. creator name (dblp:creatorName): The full name of the creator., Creator
7. year of publication (dblp:yearOfPublication): The year the publication's issue or volume has been published., Publication
8. published in series (dblp:publishedInSeries): The name of the series in which the publication has been publish...journals and conference series are modelled as proper entities.), Publication, publishedIn
9. created by (dblp:createdBy): The publication is created by the creator., Publication, Creator
10. published in book chapter (dblp:publishedInBookChapter): The chapter of the book in which the publication has been publis...journals and conference series are modelled as proper entities.), Publication

[Tool]
Top 10 property alternatives:
1. year of event (dblp:yearOfEvent): The year the conference or workshop contribution has been presented., Publication
2. year of publication (dblp:yearOfPublication): The year the publication's issue or volume has been published., Publication
3. published in (dblp:publishedIn): The name of the series, the journal, or the book in which the pu...journals and conference series are modelled as proper entities.), Publication
4. month of publication (dblp:monthOfPublication): The month the publication has been published., Publication
5. published by (dblp:publishedBy): The publisher of the publication. (Remark: This property current...string values until publishers are modelled as proper entities.), Publication
6. issn (dblp:issn): An International Standard Serial Number., identifier, Stream
7. title (dblp:title): The title of the publication., Publication
8. published in series (dblp:publishedInSeries): The name of the series in which the publication has been publish...journals and conference series are modelled as proper entities.), Publication, publishedIn
9. authored by (dblp:authoredBy): The publication is authored by the creator., Publication, createdBy, Creator
10. published as part of (dblp:publishedAsPartOf): The publication has been published as a part of the other publication., Publication

[Tool] Got no rows and 1 columns

[Assistant]
Based on the query, there are no publications authored by Barbara Von Eckardt in 2001 in the DBLP database.

Here is the SPARQL query that checks for any publications by Barbara Von Eckardt in 2001:

```sparql
ASK {
  ?pub dblp:authoredBy <https://dblp.org/pid/96/277> ;
       dblp:yearOfPublication 2001 .
}
```

Since the result is empty, the answer to your question "Didn't Eckardt, Barbara Von not publish in 2001?" is True—she did not publish in 2001 according to DBLP.

[Tool] Stopped generation process

[User]
Feedback (status=retry):
The output is incorrect. The SPARQL ASK query checks whether there exists a publication authored by Barbara Von Eckardt in 2001. The query returns False, which means that there is no such publication. Therefore, the correct answer to the user's question ('Didn't Eckardt, Barbara Von not publish in 2001?') should be 'Yes, Barbara Von Eckardt did not publish in 2001.' The system's answer incorrectly states 'True' without clarifying the context, and the explanation is misleading. The answer should be reworded for clarity and correctness, matching the logic of the ASK query result.

[Tool] Stopped generation process

[User]
Feedback (status=done):
The ASK query correctly checks if there exists any publication authored by Barbara Von Eckardt in 2001 by searching for a publication with the specified author and year. The result is False, which matches the answer provided: she did not publish in 2001. The query follows the rules, uses the correct properties, and does not include unnecessary computation or labels. No further refinement is needed.


PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
PREFIX dblp: <https://dblp.org/rdf/schema#>
SELECT ?author ?authorLabel ?affiliation WHERE {
  <https://dblp.org/rec/journals/nar/KanzAABBBBBCCDEFGDHKLLLMMNSSSTTVWZA05> dblp:authoredBy ?author .
  OPTIONAL {
    ?author rdfs:label ?authorLabel
  }
  OPTIONAL {
    ?author dblp:affiliation ?affiliation
  }
}

Got 32 rows and 3 columns, showing the first 5 and last 5 rows below:
| author                                                   | authorLabel             | affiliation |
| -------------------------------------------------------- | ----------------------- | ----------- |
| Katerina Tzouvara (<https://dblp.org/pid/00/5490>)       | Katerina Tzouvara       |             |
| Tamara Kulikova (<https://dblp.org/pid/02/2806>)         | Tamara Kulikova         |             |
| Matias Castro (<https://dblp.org/pid/02/3693>)           | Matias Castro           |             |
| Michelle McHale (<https://dblp.org/pid/06/3076>)         | Michelle McHale         |             |
| Alexandra van den Broek (<https://dblp.org/pid/18/3578>) | Alexandra van den Broek |             |
| ...                                                      | ...                     | ...         |
| Alastair Baldwin (<https://dblp.org/pid/66/1198>)        | Alastair Baldwin        |             |
| Federico Garcia Diez (<https://dblp.org/pid/71/6957>)    | Federico Garcia Diez    |             |
| Vincent Lombard (<https://dblp.org/pid/76/5226>)         | Vincent Lombard         |             |
| Nicola Harte (<https://dblp.org/pid/80/1086>)            | Nicola Harte            |             |
| Rolf Apweiler (<https://dblp.org/pid/87/4317>)           | Rolf Apweiler           |             |

The authors of the paper 'The EMBL Nucleotide Sequence Database' (2005) are:
- Katerina Tzouvara
- Tamara Kulikova
- Matias Castro
- Michelle McHale
- Alexandra van den Broek
- ... (and others, total 32 authors)

For most authors, the DBLP knowledge graph does not provide affiliation information. However, for Robert Vaughan 0001, the affiliation is 'European Bioinformatics Institute (EMBL-EBI), Hinxton, UK', and for Renato Mancuso 0002, it is 'European Bioinformatics Institute, Cambridge, UK'. The rest of the authors do not have affiliations listed in the DBLP knowledge graph.

[System]
You are a question answering assistant. Your job is to generate a SPARQL query to answer a given user question.

You have access to the following knowledge graphs:
dblp at https://qlever.cs.uni-freiburg.de/api/dblp

You can use the following SPARQL prefixes implicitly in all functions:
bibtex: <http://purl.org/net/nknouf/ns/bibtex#
cito: <http://purl.org/spar/cito/
datacite: <http://purl.org/spar/datacite/
dblp: <https://dblp.org/rdf/schema#
dblps: <https://dblp.org/rdf/schema-2020-07-01#
literal: <http://purl.org/spar/literal/
owl: <http://www.w3.org/2002/07/owl#
rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#
rdfs: <http://www.w3.org/2000/01/rdf-schema#
schema: <http://schema.org/
terms: <http://purl.org/dc/terms/
wd: <http://www.wikidata.org/entity/
wdt: <http://www.wikidata.org/prop/direct/
wikibase: <http://wikiba.se/ontology#
xsd: <http://www.w3.org/2001/XMLSchema#
foaf: <http://xmlns.com/foaf/0.1/
skos: <http://www.w3.org/2004/02/skos/core#
dc: <http://purl.org/dc/elements/1.1/
prov: <http://www.w3.org/ns/prov#
geo: <http://www.opengis.net/ont/geosparql#
geosparql: <http://www.opengis.net/ont/geosparql#
gn: <http://www.geonames.org/ontology#
bd: <http://www.bigdata.com/rdf#
hint: <http://www.bigdata.com/queryHints#
qb: <http://purl.org/linked-data/cube#
void: <http://rdfs.org/ns/void#

You should follow a step-by-step approach to generate the SPARQL query:
1. Determine possible entities and properties implied by the user question.
2. Use the functions to search for entities and properties in the knowledge graphs. Where applicable, constrain the searches with already identified entities and properties.
3. Gradually build up the SPARQL query using the identified entities and properties. Start with simple queries and add more complexity as needed. Use the execute function to get feedback on intermediate queries. You can go back and forth between knowledge graph searches and SPARQL query executions to refine the query.
4. Use the answer or cancel function to finalize your answer and stop the generation process.

Additional rules:
1. Explain your thought process before and after each step and function call.
2. Do not assume or make up any entities or properties without verifying them with the knowledge graphs and functions.
3. The SPARQL query should always return the actual identifiers / IRIs of the items in its result. It additionally may return labels or other human-readable information, but they are optional and should be put within optional clauses unless explicitly requested by the user.
4. Do not stop early if there are still obvious improvements to be made to the SPARQL query. For example, keep refining your SPARQL query if its result contains irrelevant items or is missing items you expected.
5. Do not perform additional computation (e.g. filtering, sorting, calculations) on the result of the SPARQL query to determine the answer. All computation should be done solely within SPARQL.
6. For questions with a "True" or "False" answer the SPARQL query should be an ASK query.
7. Do not use 'SERVICE wikibase:label { bd:serviceParam wikibase:language ...' in SPARQL queries. It is not SPARQL standard and unsupported by the used QLever SPARQL endpoints. Use rdfs:label or similar properties to get labels instead.

[User] Who are the authors of the paper 'The EMBL Nucleotide Sequence Database' and what are their affiliations?

[Assistant]
Let's break down the question:

1. Identify the paper "The EMBL Nucleotide Sequence Database" in the DBLP knowledge graph.
2. Find the authors of this paper.
3. For each author, find their affiliations.

Step 1: Search for the paper entity by its title.

[Tool]
Top 10 entity alternatives:
1. Carola Kanz et al.: The EMBL Nucleotide Sequence Database. (2005) (<https://dblp.org/rec/journals/nar/KanzAABBBBBCCDEFGDHKLLLMMNSSSTTVWZA05>)
2. Tamara Kulikova et al.: The EMBL...eotide Sequence Database. (2004) (<https://dblp.org/rec/journals/nar/KulikovaAABBBBCDEFGHKLLLLMMNSSSTTVWZA04>)
3. Guenter Stoesser et al.: The EMB...eotide Sequence Database. (2002) (<https://dblp.org/rec/journals/nar/StoesserBBCGKKLLLLRSTTV03>)
4. Guenter Stoesser et al.: The EMB...eotide sequence database. (2001) (<https://dblp.org/rec/journals/nar/StoesserBBCGKKLLPRSST01>)
5. Wendy Baker et al.: The EMBL Nucleotide Sequence Database. (2000) (<https://dblp.org/rec/journals/nar/BakerBCHSST00>)
6. Guenter Stoesser et al.: The EMB...eotide sequence database. (1998) (<https://dblp.org/rec/journals/nar/StoesserMSMGS98>)
7. Guenter Stoesser et al.: The EMB...eotide Sequence Database. (1997) (<https://dblp.org/rec/journals/nar/StoesserSTSC97>)
8. Guenter Stoesser et al.: The EMB...eotide Sequence Database. (1999) (<https://dblp.org/rec/journals/nar/StoesserTLS99>)
9. Guenter Stoesser et al.: The EMB...: major new developments. (2003) (<https://dblp.org/rec/journals/nar/StoesserBBGKKLLLLMNSTTV03>)
10. Tamara Kulikova et al.: EMBL Nuc...equence Database in 2006. (2007) (<https://dblp.org/rec/journals/nar/KulikovaAAAABBBBBCCDEFHKLLLLLLMMNPPSSVWZA07>)

[Assistant]
The top result is "Carola Kanz et al.: The EMBL Nucleotide Sequence Database. (2005)" with the IRI: https://dblp.org/rec/journals/nar/KanzAABBBBBCCDEFGDHKLLLMMNSSSTTVWZA05.

Next, I will retrieve the authors of this paper and then their affiliations.

[Tool]
Got 122 rows and 3 columns, showing the first 10 rows below:
| subject                                                                                | property                                   | object                                                           |
| --------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------ | ---------------------------------------------------------------- |
| Carola Kanz et al.: The EMBL Nucleotide Sequence Database. (2005) (<https://dblp.org/rec/journals/nar/KanzAABBBBBCCDEFGDHKLLLMMNSSSTTVWZA05>) | hasSignature (dblp:hasSignature)           | _:bn36824834                                                     |
| Carola Kanz et al.: The EMBL Nucleotide Sequence Database. (2005) (<https://dblp.org/rec/journals/nar/KanzAABBBBBCCDEFGDHKLLLMMNSSSTTVWZA05>) | createdBy (dblp:createdBy)                 | Rolf Apweiler (<https://dblp.org/pid/87/4317>)                   |
| Carola Kanz et al.: The EMBL Nucleotide Sequence Database. (2005) (<https://dblp.org/rec/journals/nar/KanzAABBBBBCCDEFGDHKLLLMMNSSSTTVWZA05>) | authoredBy (dblp:authoredBy)               | Rolf Apweiler (<https://dblp.org/pid/87/4317>)                   |
| Carola Kanz et al.: The EMBL Nucleotide Sequence Database. (2005) (<https://dblp.org/rec/journals/nar/KanzAABBBBBCCDEFGDHKLLLMMNSSSTTVWZA05>) | publishedInStream (dblp:publishedInStream) | Nucleic Acids Research (<https://dblp.org/streams/journals/nar>) |
| Carola Kanz et al.: The EMBL Nucleotide Sequence Database. (2005) (<https://dblp.org/rec/journals/nar/KanzAABBBBBCCDEFGDHKLLLMMNSSSTTVWZA05>) | documentPage (dblp:documentPage)           | <https://doi.org/10.1093/NAR/GKI098>                             |
| Carola Kanz et al.: The EMBL Nucleotide Sequence Database. (2005) (<https://dblp.org/rec/journals/nar/KanzAABBBBBCCDEFGDHKLLLMMNSSSTTVWZA05>) | bibtexType (dblp:bibtexType)               | bibtex:Article                                                   |
| Carola Kanz et al.: The EMBL Nucleotide Sequence Database. (2005) (<https://dblp.org/rec/journals/nar/KanzAABBBBBCCDEFGDHKLLLMMNSSSTTVWZA05>) | numberOfCreators (dblp:numberOfCreators)   | 32 (xsd:int)                                                     |
| Carola Kanz et al.: The EMBL Nucleotide Sequence Database. (2005) (<https://dblp.org/rec/journals/nar/KanzAABBBBBCCDEFGDHKLLLMMNSSSTTVWZA05>) | title (dblp:title)                         | The EMBL Nucleotide Sequence Database.                           |
| Carola Kanz et al.: The EMBL Nucleotide Sequence Database. (2005) (<https://dblp.org/rec/journals/nar/KanzAABBBBBCCDEFGDHKLLLMMNSSSTTVWZA05>) | yearOfPublication (dblp:yearOfPublication) | 2005 (xsd:gYear)                                                 |
| Carola Kanz et al.: The EMBL Nucleotide Sequence Database. (2005) (<https://dblp.org/rec/journals/nar/KanzAABBBBBCCDEFGDHKLLLMMNSSSTTVWZA05>) | listedOnTocPage (dblp:listedOnTocPage)     | <https://dblp.org/db/journals/nar/nar33>                         |
| ...                                                                                | ...                                        | ...                                                              |

[Tool]
Got 32 rows and 3 columns, showing the first 10 rows below:
| subject                                                                                | property                     | object                                                 |
| --------------------------------------------------------------------------------------------------------------------------------------------- | ---------------------------- | ------------------------------------------------------ |
| Carola Kanz et al.: The EMBL Nucleotide Sequence Database. (2005) (<https://dblp.org/rec/journals/nar/KanzAABBBBBCCDEFGDHKLLLMMNSSSTTVWZA05>) | authoredBy (dblp:authoredBy) | Rolf Apweiler (<https://dblp.org/pid/87/4317>)         |
| Carola Kanz et al.: The EMBL Nucleotide Sequence Database. (2005) (<https://dblp.org/rec/journals/nar/KanzAABBBBBCCDEFGDHKLLLMMNSSSTTVWZA05>) | authoredBy (dblp:authoredBy) | Robert Vaughan 0001 (<https://dblp.org/pid/29/4877>)   |
| Carola Kanz et al.: The EMBL Nucleotide Sequence Database. (2005) (<https://dblp.org/rec/journals/nar/KanzAABBBBBCCDEFGDHKLLLMMNSSSTTVWZA05>) | authoredBy (dblp:authoredBy) | Mary Ann Tuli (<https://dblp.org/pid/18/735>)          |
| Carola Kanz et al.: The EMBL Nucleotide Sequence Database. (2005) (<https://dblp.org/rec/journals/nar/KanzAABBBBBCCDEFGDHKLLLMMNSSSTTVWZA05>) | authoredBy (dblp:authoredBy) | Peter Stoehr (<https://dblp.org/pid/25/2927>)          |
| Carola Kanz et al.: The EMBL Nucleotide Sequence Database. (2005) (<https://dblp.org/rec/journals/nar/KanzAABBBBBCCDEFGDHKLLLMMNSSSTTVWZA05>) | authoredBy (dblp:authoredBy) | Ruth Y. Eberhardt (<https://dblp.org/pid/42/5444>)     |
| Carola Kanz et al.: The EMBL Nucleotide Sequence Database. (2005) (<https://dblp.org/rec/journals/nar/KanzAABBBBBCCDEFGDHKLLLMMNSSSTTVWZA05>) | authoredBy (dblp:authoredBy) | Guy Cochrane (<https://dblp.org/pid/42/6527>)          |
| Carola Kanz et al.: The EMBL Nucleotide Sequence Database. (2005) (<https://dblp.org/rec/journals/nar/KanzAABBBBBCCDEFGDHKLLLMMNSSSTTVWZA05>) | authoredBy (dblp:authoredBy) | Rodrigo Lopez (<https://dblp.org/pid/49/5677>)         |
| Carola Kanz et al.: The EMBL Nucleotide Sequence Database. (2005) (<https://dblp.org/rec/journals/nar/KanzAABBBBBCCDEFGDHKLLLMMNSSSTTVWZA05>) | authoredBy (dblp:authoredBy) | Vincent Lombard (<https://dblp.org/pid/76/5226>)       |
| Carola Kanz et al.: The EMBL Nucleotide Sequence Database. (2005) (<https://dblp.org/rec/journals/nar/KanzAABBBBBCCDEFGDHKLLLMMNSSSTTVWZA05>) | authoredBy (dblp:authoredBy) | Renato Mancuso 0002 (<https://dblp.org/pid/19/5387-2>) |
| Carola Kanz et al.: The EMBL Nucleotide Sequence Database. (2005) (<https://dblp.org/rec/journals/nar/KanzAABBBBBCCDEFGDHKLLLMMNSSSTTVWZA05>) | authoredBy (dblp:authoredBy) | Katerina Tzouvara (<https://dblp.org/pid/00/5490>)     |
| ...                                                                                | ...                          | ...                                                    |

[Tool]
Top 10 property alternatives:
1. affiliation (dblp:affiliation): A (past or present) affiliation of the creator. (Remark: This pr...ring values until institutions are modelled as proper entities.), creatorNote, Creator
2. primary affiliation (dblp:primaryAffiliation): The primary affiliation of the creator. (Remark: This property c...ring values until institutions are modelled as proper entities.), affiliation, Creator
3. has signature (dblp:hasSignature): A signature that links this publication to an creator., Publication, Signature
4. signature orcid (dblp:signatureOrcid): An ORCID that links the publication to a creator., Signature
5. signature publication (dblp:signaturePublication): The publication of this signature., Publication, Signature
6. published by (dblp:publishedBy): The publisher of the publication. (Remark: This property current...string values until publishers are modelled as proper entities.), Publication
7. title (dblp:title): The title of the publication., Publication
8. isbn (dblp:isbn): An International Standard Book Number., Publication, identifier
9. related stream (dblp:relatedStream): This stream is related to the other stream in some unspecified way., Stream
10. doi (dblp:doi): A Digital Object Identifier., Publication, identifier

[Tool] Got no rows and 3 columns

[Tool]
Got 1 row and 3 columns:
| subject                                              | property                       | object                                                    |
| ---------------------------------------------------- | ------------------------------ | --------------------------------------------------------- |
| Robert Vaughan 0001 (<https://dblp.org/pid/29/4877>) | affiliation (dblp:affiliation) | European Bioinformatics Institute (EMBL-EBI), Hinxton, UK |

[Tool] Got no rows and 3 columns

[Tool] Got no rows and 3 columns

[Tool] Got no rows and 3 columns

[Tool] Got no rows and 3 columns

[Tool] Got no rows and 3 columns

[Tool] Got no rows and 3 columns

[Tool]
Got 1 row and 3 columns:
| subject                                                | property                       | object                                           |
| ------------------------------------------------------ | ------------------------------ | ------------------------------------------------ |
| Renato Mancuso 0002 (<https://dblp.org/pid/19/5387-2>) | affiliation (dblp:affiliation) | European Bioinformatics Institute, Cambridge, UK |

[Tool] Got no rows and 3 columns

[Tool]
Got 32 rows and 3 columns, showing the first 5 and last 5 rows below:
| author                                                   | authorLabel             | affiliation |
| -------------------------------------------------------- | ----------------------- | ----------- |
| Katerina Tzouvara (<https://dblp.org/pid/00/5490>)       | Katerina Tzouvara       |             |
| Tamara Kulikova (<https://dblp.org/pid/02/2806>)         | Tamara Kulikova         |             |
| Matias Castro (<https://dblp.org/pid/02/3693>)           | Matias Castro           |             |
| Michelle McHale (<https://dblp.org/pid/06/3076>)         | Michelle McHale         |             |
| Alexandra van den Broek (<https://dblp.org/pid/18/3578>) | Alexandra van den Broek |             |
| ...                                                      | ...                     | ...         |
| Alastair Baldwin (<https://dblp.org/pid/66/1198>)        | Alastair Baldwin        |             |
| Federico Garcia Diez (<https://dblp.org/pid/71/6957>)    | Federico Garcia Diez    |             |
| Vincent Lombard (<https://dblp.org/pid/76/5226>)         | Vincent Lombard         |             |
| Nicola Harte (<https://dblp.org/pid/80/1086>)            | Nicola Harte            |             |
| Rolf Apweiler (<https://dblp.org/pid/87/4317>)           | Rolf Apweiler           |             |

[Tool]
Got 32 rows and 3 columns, showing the first 5 and last 5 rows below:
| author                                                   | authorLabel             | affiliation |
| -------------------------------------------------------- | ----------------------- | ----------- |
| Katerina Tzouvara (<https://dblp.org/pid/00/5490>)       | Katerina Tzouvara       |             |
| Tamara Kulikova (<https://dblp.org/pid/02/2806>)         | Tamara Kulikova         |             |
| Matias Castro (<https://dblp.org/pid/02/3693>)           | Matias Castro           |             |
| Michelle McHale (<https://dblp.org/pid/06/3076>)         | Michelle McHale         |             |
| Alexandra van den Broek (<https://dblp.org/pid/18/3578>) | Alexandra van den Broek |             |
| ...                                                      | ...                     | ...         |
| Alastair Baldwin (<https://dblp.org/pid/66/1198>)        | Alastair Baldwin        |             |
| Federico Garcia Diez (<https://dblp.org/pid/71/6957>)    | Federico Garcia Diez    |             |
| Vincent Lombard (<https://dblp.org/pid/76/5226>)         | Vincent Lombard         |             |
| Nicola Harte (<https://dblp.org/pid/80/1086>)            | Nicola Harte            |             |
| Rolf Apweiler (<https://dblp.org/pid/87/4317>)           | Rolf Apweiler           |             |

[Tool] Stopped generation process

[User]
Feedback (status=done):
The SPARQL query correctly retrieves all authors of the specified paper and attempts to get their affiliations using OPTIONAL clauses. The result includes the IRIs for the authors, as required, and does not use any non-standard SPARQL constructs. The answer accurately reflects the data available in the DBLP knowledge graph, noting the lack of affiliation information for most authors. No further refinement is necessary.


PREFIX dblp: <https://dblp.org/rdf/schema#>
SELECT ?author ( MIN( ?year ) AS ?firstYear ) WHERE {
  VALUES ?author {
    <https://dblp.org/pid/270/5520> <https://dblp.org/pid/10/1143> <https://dblp.org/pid/193/8345> <https://dblp.org/pid/227/4261>
  }
  ?paper dblp:authoredBy ?author .
  ?paper dblp:yearOfPublication ?year .
}
GROUP BY ?author

The years in which the first papers of the authors were published are:
- Zheng Li: 1994
- Yilin Yuan: 2017
- Jianbiao Zhang: 2018
- Wanshan Xu: 2018

[System]
You are a question answering assistant. Your job is to generate a SPARQL query to answer a given user question.

You have access to the following knowledge graphs:
dblp at https://qlever.cs.uni-freiburg.de/api/dblp

You can use the following SPARQL prefixes implicitly in all functions:
bibtex: <http://purl.org/net/nknouf/ns/bibtex#
cito: <http://purl.org/spar/cito/
datacite: <http://purl.org/spar/datacite/
dblp: <https://dblp.org/rdf/schema#
dblps: <https://dblp.org/rdf/schema-2020-07-01#
literal: <http://purl.org/spar/literal/
owl: <http://www.w3.org/2002/07/owl#
rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#
rdfs: <http://www.w3.org/2000/01/rdf-schema#
schema: <http://schema.org/
terms: <http://purl.org/dc/terms/
wd: <http://www.wikidata.org/entity/
wdt: <http://www.wikidata.org/prop/direct/
wikibase: <http://wikiba.se/ontology#
xsd: <http://www.w3.org/2001/XMLSchema#
foaf: <http://xmlns.com/foaf/0.1/
skos: <http://www.w3.org/2004/02/skos/core#
dc: <http://purl.org/dc/elements/1.1/
prov: <http://www.w3.org/ns/prov#
geo: <http://www.opengis.net/ont/geosparql#
geosparql: <http://www.opengis.net/ont/geosparql#
gn: <http://www.geonames.org/ontology#
bd: <http://www.bigdata.com/rdf#
hint: <http://www.bigdata.com/queryHints#
qb: <http://purl.org/linked-data/cube#
void: <http://rdfs.org/ns/void#

You should follow a step-by-step approach to generate the SPARQL query:
1. Determine possible entities and properties implied by the user question.
2. Use the functions to search for entities and properties in the knowledge graphs. Where applicable, constrain the searches with already identified entities and properties.
3. Gradually build up the SPARQL query using the identified entities and properties. Start with simple queries and add more complexity as needed. Use the execute function to get feedback on intermediate queries. You can go back and forth between knowledge graph searches and SPARQL query executions to refine the query.
4. Use the answer or cancel function to finalize your answer and stop the generation process.

Additional rules:
1. Explain your thought process before and after each step and function call.
2. Do not assume or make up any entities or properties without verifying them with the knowledge graphs and functions.
3. The SPARQL query should always return the actual identifiers / IRIs of the items in its result. It additionally may return labels or other human-readable information, but they are optional and should be put within optional clauses unless explicitly requested by the user.
4. Do not stop early if there are still obvious improvements to be made to the SPARQL query. For example, keep refining your SPARQL query if its result contains irrelevant items or is missing items you expected.
5. Do not perform additional computation (e.g. filtering, sorting, calculations) on the result of the SPARQL query to determine the answer. All computation should be done solely within SPARQL.
6. For questions with a "True" or "False" answer the SPARQL query should be an ASK query.
7. Do not use 'SERVICE wikibase:label { bd:serviceParam wikibase:language ...' in SPARQL queries. It is not SPARQL standard and unsupported by the used QLever SPARQL endpoints. Use rdfs:label or similar properties to get labels instead.

[User] Find the year in which the first papers of the authors of 'Enable data privacy, dynamics, and batch in public auditing scheme for cloud storage system' were published.

[Assistant]
Let's break down the question:

1. First, we need to identify the paper titled "Enable data privacy, dynamics, and batch in public auditing scheme for cloud storage system" and get its authors.
2. For each author, we need to find their first (earliest) paper and the year it was published.

Let's start by searching for the paper entity in the DBLP knowledge graph.

[Tool]
Top 10 entity alternatives:
1. Yilin Yuan et al.: Enable data p...for cloud storage system. (2022) (<https://dblp.org/rec/journals/concurrency/YuanZXL22>)
2. T. Subha and S. Jayashri: Public...urity in Cloud Computing. (2017) (<https://dblp.org/rec/journals/jise/SubhaJ17>)
3. S. Anbuchelian et al.: Efficient...ng data storage in cloud. (2019) (<https://dblp.org/rec/journals/cluster/AnbuchelianSR19>)
4. Xia'nan Zhao and Dongsheng Wang:... in Mobile Cloud Storage. (2022) (<https://dblp.org/rec/conf/ieeesec/ZhaoW22>)
5. Hemalata A. Gosavi and Manish R....urity in Cloud Computing. (2014) (<https://dblp.org/rec/journals/corr/GosaviU14>)
6. Guangyang Yang et al.: Enabling ...privacy and traceability. (2016) (<https://dblp.org/rec/journals/jss/YangYSSFH16>)
7. Xiaojun Zhang et al.: Conditiona...or Cloud Storage Systems. (2022) (<https://dblp.org/rec/journals/tnsm/ZhangWGXT22>)
8. Hongyu Liu et al.: Insecurity of...e for Cloud Data Storage. (2015) (<https://dblp.org/rec/journals/jucs/LiuCDP15>)
9. Syam Kumar Pasupuleti: Privacy-P...n Exact Regenerated Code. (2019) (<https://dblp.org/rec/journals/ijcac/Pasupuleti19>)
10. Vasudev Chakka et al.: Efficient...gnature in Cloud Storage. (2023) (<https://dblp.org/rec/conf/IEEEants/ChakkaPSABPP23>)

[Assistant]
The top result matches the title exactly: "Yilin Yuan et al.: Enable data privacy, dynamics, and batch in public auditing scheme for cloud storage system. (2022)" with the IRI: https://dblp.org/rec/journals/concurrency/YuanZXL22.

Next, I will retrieve the authors of this paper.

[Tool]
Got 37 rows and 3 columns, showing the first 10 rows below:
| subject                                                                                | property                                   | object                                                                                |
| --------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------ | ------------------------------------------------------------------------------------------------------ |
| Yilin Yuan et al.: Enable data p...for cloud storage system. (2022) (<https://dblp.org/rec/journals/concurrency/YuanZXL22>) | hasSignature (dblp:hasSignature)           | _:bn25372332                                                                                |
| Yilin Yuan et al.: Enable data p...for cloud storage system. (2022) (<https://dblp.org/rec/journals/concurrency/YuanZXL22>) | createdBy (dblp:createdBy)                 | Wanshan Xu (<https://dblp.org/pid/270/5520>)                                                           |
| Yilin Yuan et al.: Enable data p...for cloud storage system. (2022) (<https://dblp.org/rec/journals/concurrency/YuanZXL22>) | authoredBy (dblp:authoredBy)               | Wanshan Xu (<https://dblp.org/pid/270/5520>)                                                           |
| Yilin Yuan et al.: Enable data p...for cloud storage system. (2022) (<https://dblp.org/rec/journals/concurrency/YuanZXL22>) | publishedInStream (dblp:publishedInStream) | Concurrency and Computation: Practice and Experience (<https://dblp.org/streams/journals/concurrency>) |
| Yilin Yuan et al.: Enable data p...for cloud storage system. (2022) (<https://dblp.org/rec/journals/concurrency/YuanZXL22>) | documentPage (dblp:documentPage)           | <https://doi.org/10.1002/CPE.6735>                                                                     |
| Yilin Yuan et al.: Enable data p...for cloud storage system. (2022) (<https://dblp.org/rec/journals/concurrency/YuanZXL22>) | bibtexType (dblp:bibtexType)               | bibtex:Article                                                                                |
| Yilin Yuan et al.: Enable data p...for cloud storage system. (2022) (<https://dblp.org/rec/journals/concurrency/YuanZXL22>) | numberOfCreators (dblp:numberOfCreators)   | 4 (xsd:int)                                                                                |
| Yilin Yuan et al.: Enable data p...for cloud storage system. (2022) (<https://dblp.org/rec/journals/concurrency/YuanZXL22>) | title (dblp:title)                         | Enable data privacy, dynamics, a...scheme for cloud storage system.                                    |
| Yilin Yuan et al.: Enable data p...for cloud storage system. (2022) (<https://dblp.org/rec/journals/concurrency/YuanZXL22>) | yearOfPublication (dblp:yearOfPublication) | 2022 (xsd:gYear)                                                                                |
| Yilin Yuan et al.: Enable data p...for cloud storage system. (2022) (<https://dblp.org/rec/journals/concurrency/YuanZXL22>) | listedOnTocPage (dblp:listedOnTocPage)     | <https://dblp.org/db/journals/concurrency/concurrency34>                                               |
| ...                                                                                | ...                                        | ...                                                                                |

[Tool]
Got 4 rows and 3 columns:
| subject                                                                                | property                     | object                                                     |
| --------------------------------------------------------------------------------------------------------------------------- | ---------------------------- | ---------------------------------------------------------- |
| Yilin Yuan et al.: Enable data p...for cloud storage system. (2022) (<https://dblp.org/rec/journals/concurrency/YuanZXL22>) | authoredBy (dblp:authoredBy) | Wanshan Xu (<https://dblp.org/pid/270/5520>)               |
| Yilin Yuan et al.: Enable data p...for cloud storage system. (2022) (<https://dblp.org/rec/journals/concurrency/YuanZXL22>) | authoredBy (dblp:authoredBy) | Zheng Li (disambiguation) (<https://dblp.org/pid/10/1143>) |
| Yilin Yuan et al.: Enable data p...for cloud storage system. (2022) (<https://dblp.org/rec/journals/concurrency/YuanZXL22>) | authoredBy (dblp:authoredBy) | Yilin Yuan (<https://dblp.org/pid/193/8345>)               |
| Yilin Yuan et al.: Enable data p...for cloud storage system. (2022) (<https://dblp.org/rec/journals/concurrency/YuanZXL22>) | authoredBy (dblp:authoredBy) | Jianbiao Zhang (<https://dblp.org/pid/227/4261>)           |

[Assistant]
The authors of the paper are:
- Wanshan Xu (<https://dblp.org/pid/270/5520>)
- Zheng Li (<https://dblp.org/pid/10/1143>)
- Yilin Yuan (<https://dblp.org/pid/193/8345>)
- Jianbiao Zhang (<https://dblp.org/pid/227/4261>)

Now, for each author, we need to find the year of their first publication. This means:
1. Find all papers authored by each author.
2. Get the publication years.
3. Select the minimum (earliest) year for each author.

I will now construct a SPARQL query to retrieve, for each author, the earliest year of their publications.

[Tool]
Failed to call function execute:
failed to parse input: parse error at position 313 for token AS with content 'AS' (the input most likely does not follow the grammar)

[Assistant]
The error occurred because the HAVING clause is not used correctly for aggregation in SPARQL. Instead, we should use the MIN aggregate function in the SELECT clause with GROUP BY.

Let me correct the query to use MIN(?year) AS ?firstYear in the SELECT clause.

[Tool]
Got 4 rows and 2 columns:
| author                                                     | firstYear        |
| ---------------------------------------------------------- | ---------------- |
| Zheng Li (disambiguation) (<https://dblp.org/pid/10/1143>) | 1994 (xsd:gYear) |
| Yilin Yuan (<https://dblp.org/pid/193/8345>)               | 2017 (xsd:gYear) |
| Jianbiao Zhang (<https://dblp.org/pid/227/4261>)           | 2018 (xsd:gYear) |
| Wanshan Xu (<https://dblp.org/pid/270/5520>)               | 2018 (xsd:gYear) |

[Tool] Stopped generation process

[User]
Feedback (status=done):
The SPARQL query correctly retrieves the earliest publication year for each of the specified authors by using the MIN aggregation on the year of publication. The query returns the IRIs of the authors as required, and the answer matches the query result. No further refinement is needed.