Nantes–Châteaubriant railway
E518146
The Nantes–Châteaubriant railway is a regional rail line in western France connecting the city of Nantes with the town of Châteaubriant.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Nantes–Châteaubriant railway canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5370035 — 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: Nantes–Châteaubriant railway Context triple: [Gare de Nantes, servesRailwayLine, Nantes–Châteaubriant railway]
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A.
Nantes–La Roche-sur-Yon railway
The Nantes–La Roche-sur-Yon railway is a regional rail line in western France connecting the city of Nantes with La Roche-sur-Yon, serving as an important link within the Pays de la Loire transport network.
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B.
Paris–Rennes railway
The Paris–Rennes railway is a major French rail line connecting the capital Paris with the city of Rennes in Brittany, serving numerous intermediate towns and regional hubs along its route.
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C.
Paris–Nantes railway
The Paris–Nantes railway is a major French rail line connecting the capital Paris with the city of Nantes in western France, serving as an important corridor for both passenger and freight transport.
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D.
Paris–Granville railway
The Paris–Granville railway is a major French rail line connecting Paris to the coastal town of Granville in Normandy, serving both regional passenger and freight traffic.
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E.
Lyon–Saint-Étienne railway
The Lyon–Saint-Étienne railway is a major French rail line in the Auvergne-Rhône-Alpes region that connects the cities of Lyon and Saint-Étienne, serving both passenger and freight traffic.
- 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: Nantes–Châteaubriant railway Target entity description: The Nantes–Châteaubriant railway is a regional rail line in western France connecting the city of Nantes with the town of Châteaubriant.
-
A.
Nantes–La Roche-sur-Yon railway
The Nantes–La Roche-sur-Yon railway is a regional rail line in western France connecting the city of Nantes with La Roche-sur-Yon, serving as an important link within the Pays de la Loire transport network.
-
B.
Paris–Rennes railway
The Paris–Rennes railway is a major French rail line connecting the capital Paris with the city of Rennes in Brittany, serving numerous intermediate towns and regional hubs along its route.
-
C.
Paris–Nantes railway
The Paris–Nantes railway is a major French rail line connecting the capital Paris with the city of Nantes in western France, serving as an important corridor for both passenger and freight transport.
-
D.
Paris–Granville railway
The Paris–Granville railway is a major French rail line connecting Paris to the coastal town of Granville in Normandy, serving both regional passenger and freight traffic.
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E.
Lyon–Saint-Étienne railway
The Lyon–Saint-Étienne railway is a major French rail line in the Auvergne-Rhône-Alpes region that connects the cities of Lyon and Saint-Étienne, serving both passenger and freight traffic.
- F. None of above. chosen
Statements (29)
| Predicate | Object |
|---|---|
| instanceOf | railway line ⓘ |
| connects |
Châteaubriant
ⓘ
Nantes ⓘ |
| country | France ⓘ |
| electrification | 25 kV AC overhead line ⓘ |
| infrastructureManager | SNCF Réseau ⓘ |
| locatedIn |
Châteaubriant
ⓘ
Loire-Atlantique ⓘ Nantes ⓘ western France ⓘ
linked to:
Western France
|
| openingDate | 19th century ⓘ |
| operator | SNCF ⓘ |
| owner |
French State
ⓘ
linked to:
French state (historically)
|
| partOf | French railway network ⓘ |
| passesThrough |
Abbaretz
ⓘ
Nort-sur-Erdre ⓘ Sucé-sur-Erdre ⓘ |
| primaryStation |
Châteaubriant station
ⓘ
Nantes station ⓘ
linked to:
Gare de Nantes
|
| railGauge | standard gauge ⓘ |
| regionServed | Pays de la Loire ⓘ |
| serviceType |
TER regional rail
ⓘ
tram-train ⓘ |
| status | in operation ⓘ |
| terminus |
Châteaubriant
ⓘ
Nantes ⓘ |
| transportMode | rail ⓘ |
| usedFor |
passenger transport
ⓘ
regional transport ⓘ |
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: Nantes–Châteaubriant railway Description of subject: The Nantes–Châteaubriant railway is a regional rail line in western France connecting the city of Nantes with the town of Châteaubriant.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.