RER Line C
E601935
RER Line C is a major commuter rail line in the Paris RER network, running along the Seine and serving numerous suburbs and key destinations in the Île-de-France region.
All labels observed (9)
| Label | Occurrences |
|---|---|
| RER line C | 8 |
| RER C line | 6 |
| RER Line C canonical | 5 |
| Paris RER line C | 1 |
| RER C branch to Argenteuil | 1 |
| RER C branch to Montigny–Beauchamp | 1 |
| RER C branch to Pontoise | 1 |
| RER line C (nearby stations) | 1 |
| RER line C (via nearby connections) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6511645 — 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: RER Line C Context triple: [Saint-Quentin-en-Yvelines, hasTransport, RER Line C]
-
A.
RER line E
RER line E is a Paris regional express railway line connecting central Paris with eastern suburbs such as Gagny.
-
B.
RER B line
The RER B line is a major Paris regional express railway line that connects central Paris with key northern and southern suburbs, including Charles de Gaulle Airport.
-
C.
RER line D
RER line D is one of the main lines of the Paris RER suburban rail network, running north–south through central Paris and serving numerous suburbs across the Île-de-France region.
-
D.
RER Vaud
RER Vaud is a regional express rail network in the canton of Vaud, Switzerland, providing frequent commuter and regional train services connecting local towns and cities.
-
E.
RER A
RER A is one of the main lines of the Paris regional express network, carrying large volumes of commuters and travelers between central Paris and its suburbs.
- 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: RER Line C Target entity description: RER Line C is a major commuter rail line in the Paris RER network, running along the Seine and serving numerous suburbs and key destinations in the Île-de-France region.
-
A.
RER line E
RER line E is a Paris regional express railway line connecting central Paris with eastern suburbs such as Gagny.
-
B.
RER B line
The RER B line is a major Paris regional express railway line that connects central Paris with key northern and southern suburbs, including Charles de Gaulle Airport.
-
C.
RER line D
RER line D is one of the main lines of the Paris RER suburban rail network, running north–south through central Paris and serving numerous suburbs across the Île-de-France region.
-
D.
RER Vaud
RER Vaud is a regional express rail network in the canton of Vaud, Switzerland, providing frequent commuter and regional train services connecting local towns and cities.
-
E.
RER A
RER A is one of the main lines of the Paris regional express network, carrying large volumes of commuters and travelers between central Paris and its suburbs.
- F. None of above. chosen
Statements (81)
| Predicate | Object |
|---|---|
| instanceOf |
commuter rail line
ⓘ
public transport service ⓘ |
| connectsWith |
Paris Métro Line 1
NERFINISHED
ⓘ
Paris Métro Line 10 NERFINISHED ⓘ Paris Métro Line 12 NERFINISHED ⓘ Paris Métro Line 4 NERFINISHED ⓘ Paris Métro Line 6 NERFINISHED ⓘ RER Line A NERFINISHED ⓘ RER Line B NERFINISHED ⓘ RER Line D NERFINISHED ⓘ |
| electrification | 1,500 V DC overhead line ⓘ |
| fareSystem | Île-de-France Mobilités NERFINISHED ⓘ |
| followsRiver | Seine NERFINISHED ⓘ |
| hasBranch |
branch to Dourdan
ⓘ
branch to Massy–Palaiseau ⓘ branch to Pontoise ⓘ branch to Saint-Martin-d’Étampes ⓘ branch to Saint-Quentin-en-Yvelines ⓘ branch to Versailles-Château–Rive-Gauche ⓘ |
| hasColor | yellow ⓘ |
| hasStation |
Bibliothèque François-Mitterrand station
NERFINISHED
ⓘ
Champ de Mars–Tour Eiffel station NERFINISHED ⓘ Gare de Dourdan NERFINISHED ⓘ Gare de Juvisy NERFINISHED ⓘ Gare de Massy–Palaiseau NERFINISHED ⓘ Gare de Pontoise NERFINISHED ⓘ Gare de Saint-Martin-d’Étampes NERFINISHED ⓘ Gare d’Austerlitz NERFINISHED ⓘ Invalides station NERFINISHED ⓘ Musée d’Orsay station NERFINISHED ⓘ Saint-Michel–Notre-Dame station NERFINISHED ⓘ Versailles-Château–Rive-Gauche station NERFINISHED ⓘ |
| hasTerminus |
Dourdan station
NERFINISHED
ⓘ
Massy–Palaiseau station NERFINISHED ⓘ Montigny–Beauchamp station NERFINISHED ⓘ Pontoise station NERFINISHED ⓘ Saint-Martin-d’Étampes station NERFINISHED ⓘ Saint-Quentin-en-Yvelines NERFINISHED ⓘ Saint-Quentin-en-Yvelines–Montigny-le-Bretonneux station NERFINISHED ⓘ Versailles-Château–Rive-Gauche station NERFINISHED ⓘ Versailles–Chantiers station NERFINISHED ⓘ |
| lineLength | over 180 km ⓘ |
| locatedIn |
France
ⓘ
Île-de-France region ⓘ
surface form:
Île-de-France
|
| numberOfStations | over 80 ⓘ |
| openedForService | 1979 ⓘ |
| operator | SNCF NERFINISHED ⓘ |
| owner | SNCF Réseau NERFINISHED ⓘ |
| partOf | Paris RER network NERFINISHED ⓘ |
| passesThrough |
Paris 15th arrondissement
NERFINISHED
ⓘ
Paris 16th arrondissement NERFINISHED ⓘ Paris 1st arrondissement NERFINISHED ⓘ Paris 5th arrondissement NERFINISHED ⓘ Paris 7th arrondissement NERFINISHED ⓘ |
| railwayLineNumber | C ⓘ |
| serves |
Athis-Mons
NERFINISHED
ⓘ
Brétigny-sur-Orge NERFINISHED ⓘ Choisy-le-Roi NERFINISHED ⓘ Dourdan NERFINISHED ⓘ Gennevilliers NERFINISHED ⓘ Issy-les-Moulineaux NERFINISHED ⓘ Juvisy-sur-Orge NERFINISHED ⓘ Les Ulis (via Massy) NERFINISHED ⓘ Massy NERFINISHED ⓘ Pontoise NERFINISHED ⓘ Saint-Ouen NERFINISHED ⓘ Saint-Quentin-en-Yvelines NERFINISHED ⓘ Savigny-sur-Orge NERFINISHED ⓘ Versailles NERFINISHED ⓘ Vitry-sur-Seine NERFINISHED ⓘ Étampes NERFINISHED ⓘ |
| servesAttraction |
Eiffel Tower
NERFINISHED
ⓘ
Musée d’Orsay NERFINISHED ⓘ Notre-Dame de Paris NERFINISHED ⓘ Palace of Versailles NERFINISHED ⓘ |
| servesCity | Paris NERFINISHED ⓘ |
| trackGauge | 1,435 mm ⓘ |
| usesRollingStock |
Z 20500 EMU
NERFINISHED
ⓘ
Z 20900 EMU NERFINISHED ⓘ Z 5600 EMU NERFINISHED ⓘ Z 8800 EMU NERFINISHED ⓘ |
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: RER Line C Description of subject: RER Line C is a major commuter rail line in the Paris RER network, running along the Seine and serving numerous suburbs and key destinations in the Île-de-France region.
Referenced by (25)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
RER C line
this entity surface form:
RER C line
this entity surface form:
RER line C
this entity surface form:
RER line C
this entity surface form:
RER line C
this entity surface form:
RER line C (nearby stations)
this entity surface form:
RER line C
this entity surface form:
RER C line
this entity surface form:
RER line C (via nearby connections)
this entity surface form:
RER C line
subject surface form:
Pontoise
this entity surface form:
Paris RER line C
this entity surface form:
RER line C
this entity surface form:
RER line C
this entity surface form:
RER line C
this entity surface form:
RER C branch to Pontoise
this entity surface form:
RER C branch to Montigny–Beauchamp
this entity surface form:
RER C branch to Argenteuil
this entity surface form:
RER C line
this entity surface form:
RER line C
subject surface form:
Invalides (Paris)