Léon Boyer
E398538
Léon Boyer was a French civil engineer best known for designing major 19th-century railway structures, including the Garabit Viaduct.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Léon Boyer canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T2417291 — 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: Léon Boyer Context triple: [Garabit Viaduct, architect, Léon Boyer]
-
A.
Georges Récipon
Georges Récipon was a French sculptor best known for his ornate allegorical sculptures and monumental works in Paris during the late 19th and early 20th centuries.
-
B.
Pierre Lazareff
Pierre Lazareff was a prominent French journalist and media executive best known for transforming the newspaper France-Soir into one of the country’s leading mass-circulation dailies.
-
C.
Henri Lebasque
Henri Lebasque was a French post-impressionist painter known for his luminous use of color and intimate domestic and landscape scenes.
-
D.
Léon Marchal
Léon Marchal was a French diplomat who served as Secretary General of the Council of Europe during the early years of European postwar integration.
-
E.
Maurice Bailloud
Maurice Bailloud was a French sports official best known for delivering the judges' oath at the 1960 Summer Olympics in Rome.
- 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: Léon Boyer Target entity description: Léon Boyer was a French civil engineer best known for designing major 19th-century railway structures, including the Garabit Viaduct.
-
A.
Georges Récipon
Georges Récipon was a French sculptor best known for his ornate allegorical sculptures and monumental works in Paris during the late 19th and early 20th centuries.
-
B.
Pierre Lazareff
Pierre Lazareff was a prominent French journalist and media executive best known for transforming the newspaper France-Soir into one of the country’s leading mass-circulation dailies.
-
C.
Henri Lebasque
Henri Lebasque was a French post-impressionist painter known for his luminous use of color and intimate domestic and landscape scenes.
-
D.
Léon Marchal
Léon Marchal was a French diplomat who served as Secretary General of the Council of Europe during the early years of European postwar integration.
-
E.
Maurice Bailloud
Maurice Bailloud was a French sports official best known for delivering the judges' oath at the 1960 Summer Olympics in Rome.
- F. None of above. chosen
Statements (20)
| Predicate | Object |
|---|---|
| instanceOf |
French engineer
ⓘ
civil engineer ⓘ human ⓘ railway viaduct ⓘ |
| architect | Gustave Eiffel ⓘ |
| centuryOfActivity | 19th century ⓘ |
| country | France ⓘ |
| countryOfCitizenship | France ⓘ |
| crosses | Truyère River ⓘ |
| employer |
French railway administration
ⓘ
linked to:
SNCF Réseau
|
| engineer | Léon Boyer ⓘ |
| fieldOfWork |
bridge engineering
ⓘ
railway engineering ⓘ |
| gender | male ⓘ |
| locatedInAdministrativeTerritorialEntity |
Cantal
ⓘ
Occitanie ⓘ |
| notableWork |
Eiffel Tower foundations (engineering studies)
ⓘ
Garabit Viaduct ⓘ design of major 19th-century railway structures in France ⓘ |
| occupation | civil engineer ⓘ |
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: Léon Boyer Description of subject: Léon Boyer was a French civil engineer best known for designing major 19th-century railway structures, including the Garabit Viaduct.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
Léon Boyer