Saint-Martin-d’Étampes station
E93536
Saint-Martin-d’Étampes station is a railway terminus in Étampes, France, serving as one of the outer suburban endpoints of the Paris RER C commuter rail network.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Saint-Martin-d’Étampes station canonical | 2 |
| Saint-Martin-d'Étampes branch via RER C | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T675705 — 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: Saint-Martin-d’Étampes station Context triple: [RER C, hasTerminus, Saint-Martin-d’Étampes station]
-
A.
Saint-Quentin-en-Yvelines station
Saint-Quentin-en-Yvelines station is a major suburban railway hub in the Yvelines department of the Paris metropolitan area, serving regional and commuter rail lines including the RER.
-
B.
Saint-Rémy-lès-Chevreuse station
Saint-Rémy-lès-Chevreuse station is a suburban railway station in Île-de-France serving as a key outer terminus of Paris’s RER B commuter rail network.
-
C.
Versailles-Chantiers station
Versailles-Chantiers station is a major railway hub in Versailles, France, serving regional and suburban train lines that connect the city to Paris and surrounding areas.
-
D.
Massy-Palaiseau station
Massy-Palaiseau station is a major suburban railway and RER hub in Massy, France, providing key regional and commuter rail connections in the southern Paris metropolitan area.
-
E.
Pontoise station
Pontoise station is a major railway and RER hub in the northwestern suburbs of Paris, serving as an important terminus and interchange point for regional and suburban trains.
- 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: Saint-Martin-d’Étampes station Target entity description: Saint-Martin-d’Étampes station is a railway terminus in Étampes, France, serving as one of the outer suburban endpoints of the Paris RER C commuter rail network.
-
A.
Saint-Quentin-en-Yvelines station
Saint-Quentin-en-Yvelines station is a major suburban railway hub in the Yvelines department of the Paris metropolitan area, serving regional and commuter rail lines including the RER.
-
B.
Saint-Rémy-lès-Chevreuse station
Saint-Rémy-lès-Chevreuse station is a suburban railway station in Île-de-France serving as a key outer terminus of Paris’s RER B commuter rail network.
-
C.
Versailles-Chantiers station
Versailles-Chantiers station is a major railway hub in Versailles, France, serving regional and suburban train lines that connect the city to Paris and surrounding areas.
-
D.
Massy-Palaiseau station
Massy-Palaiseau station is a major suburban railway and RER hub in Massy, France, providing key regional and commuter rail connections in the southern Paris metropolitan area.
-
E.
Pontoise station
Pontoise station is a major railway and RER hub in the northwestern suburbs of Paris, serving as an important terminus and interchange point for regional and suburban trains.
- F. None of above. chosen
Statements (29)
| Predicate | Object |
|---|---|
| instanceOf |
RER station
ⓘ
railway station ⓘ railway terminus ⓘ |
| connectsTo | Paris city centre via RER C ⓘ |
| country | France ⓘ |
| fareZone | Île-de-France fare system ⓘ |
| hasFunction | commuter rail station ⓘ |
| hasServiceType |
commuter rail
ⓘ
suburban rail ⓘ |
| locatedIn |
Essonne
ⓘ
southern suburbs of Paris ⓘ Étampes ⓘ Île-de-France region ⓘ
surface form:
Île-de-France
|
| locatedInTimeZone |
Central European Summer Time
ⓘ
Central European Time ⓘ |
| locatedNear |
Saint-Martin-d’Étampes
ⓘ
surface form:
Saint-Martin district of Étampes
|
| municipality | Étampes ⓘ |
| network |
RER network
ⓘ
surface form:
Paris RER
Réseau Express Régional ⓘ |
| operator | SNCF ⓘ |
| owner | SNCF ⓘ |
| partOf |
RER network
ⓘ
surface form:
Paris commuter rail network
|
| railwaySystem |
SNCF Réseau
ⓘ
surface form:
French national rail network
|
| regionServed | Île-de-France region ⓘ |
| role | outer suburban terminus of RER C ⓘ |
| servedByLine | RER C ⓘ |
| serves |
commuters to and from Paris
ⓘ
town of Étampes ⓘ |
| terminusFor |
RER C
ⓘ
surface form:
Paris RER C commuter rail services
|
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: Saint-Martin-d’Étampes station Description of subject: Saint-Martin-d’Étampes station is a railway terminus in Étampes, France, serving as one of the outer suburban endpoints of the Paris RER C commuter rail network.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Saint-Martin-d'Étampes branch via RER C