Nils Gabriel Sefström
E799817
Nils Gabriel Sefström was a 19th-century Swedish chemist best known for rediscovering the chemical element vanadium.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Nils Gabriel Sefström canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T9430953 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Nils Gabriel Sefström Context triple: [Vanadium, rediscoveredBy, Nils Gabriel Sefström]
-
A.
Johan August Gripenstedt
Johan August Gripenstedt was a 19th-century Swedish statesman and liberal reformer who played a key role in modernizing Sweden’s economy and public finances.
-
B.
Fredrik Pacius
Fredrik Pacius was a 19th-century German-Finnish composer best known for writing the music to the national anthems of Finland and Estonia.
-
C.
Carl Wilhelm Cederhielm
Carl Wilhelm Cederhielm was an 18th-century Swedish nobleman and scholar best known as one of the founders of the Royal Swedish Academy of Sciences.
-
D.
Carl Jakob Sundevall
Carl Jakob Sundevall was a 19th-century Swedish zoologist and taxonomist known for his influential work on the classification of birds.
-
E.
Erik Hilding Carlsson
Erik Hilding Carlsson was a renowned Swedish rally driver, nicknamed "Carlsson on the roof," famous for his success with Saab in international rallying during the 1950s and 1960s.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Nils Gabriel Sefström Target entity description: Nils Gabriel Sefström was a 19th-century Swedish chemist best known for rediscovering the chemical element vanadium.
-
A.
Johan August Gripenstedt
Johan August Gripenstedt was a 19th-century Swedish statesman and liberal reformer who played a key role in modernizing Sweden’s economy and public finances.
-
B.
Fredrik Pacius
Fredrik Pacius was a 19th-century German-Finnish composer best known for writing the music to the national anthems of Finland and Estonia.
-
C.
Carl Wilhelm Cederhielm
Carl Wilhelm Cederhielm was an 18th-century Swedish nobleman and scholar best known as one of the founders of the Royal Swedish Academy of Sciences.
-
D.
Carl Jakob Sundevall
Carl Jakob Sundevall was a 19th-century Swedish zoologist and taxonomist known for his influential work on the classification of birds.
-
E.
Erik Hilding Carlsson
Erik Hilding Carlsson was a renowned Swedish rally driver, nicknamed "Carlsson on the roof," famous for his success with Saab in international rallying during the 1950s and 1960s.
- F. None of above. chosen
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf |
Swedish chemist
ⓘ
chemist ⓘ human ⓘ |
| associatedWith | vanadium ⓘ |
| causeOfDeath | disease (unspecified) ⓘ |
| countryOfCitizenship | Sweden ⓘ |
| dateOfBirth | 1787-09-06 ⓘ |
| dateOfDeath | 1845-11-30 ⓘ |
| discovered |
vanadium (rediscovery)
ⓘ
linked to:
Vanadium
|
| educatedAt |
University of Uppsala
ⓘ
linked to:
Uppsala University
|
| employer |
University of Uppsala
ⓘ
linked to:
Uppsala University
|
| familyName | Sefström ⓘ |
| fieldOfWork | chemistry ⓘ |
| givenName | Nils ⓘ |
| hasResearchInterest |
chemical elements
ⓘ
inorganic chemistry ⓘ |
| knownFor | rediscovery of vanadium ⓘ |
| memberOf | Royal Swedish Academy of Sciences ⓘ |
| name | Nils Gabriel Sefström ⓘ |
| nationality | Swedish ⓘ |
| nativeLanguage | Swedish ⓘ |
| notableAchievement | identified vanadium in Swedish iron ores ⓘ |
| occupation | chemist ⓘ |
| placeOfBirth |
Norrköping
ⓘ
Sweden ⓘ |
| placeOfDeath |
Stockholm
ⓘ
Sweden ⓘ |
| sexOrGender | male ⓘ |
| timePeriod | 19th century ⓘ |
| workLocation | Sweden ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Nils Gabriel Sefström Description of subject: Nils Gabriel Sefström was a 19th-century Swedish chemist best known for rediscovering the chemical element vanadium.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.