RER A
E43969
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.
All labels observed (10)
| Label | Occurrences |
|---|---|
| RER A canonical | 57 |
| RER line A | 10 |
| RER A line | 7 |
| RER Line A | 4 |
| Paris RER line A | 2 |
| RER A (SNCF-operated sections) | 1 |
| RER A at Charles de Gaulle–Étoile | 1 |
| RER A western branch | 1 |
| RER line A (Charles de Gaulle–Étoile) | 1 |
| RER line A (Noisy-le-Grand – Mont d’Est station) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T347086 — 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 A Context triple: [Gare de Lyon, serves, RER A]
-
A.
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.
-
B.
RER C
RER C is a major line of the Paris regional express rail network that connects central Paris with several suburbs and key destinations, including access to Orly Airport.
-
C.
RER D
RER D is one of the main lines of the Paris regional express network (RER), connecting northern and southern suburbs through central Paris.
-
D.
Transilien
Transilien is the suburban and regional rail network operated by SNCF that serves the Île-de-France (Greater Paris) area.
-
E.
Paris Métro Line 5
Paris Métro Line 5 is a major north–south subway line in Paris that runs from Bobigny–Pablo Picasso to Place d’Italie, serving key stations such as Gare du Nord along the way.
- 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 A Target entity description: 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.
-
A.
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.
-
B.
RER C
RER C is a major line of the Paris regional express rail network that connects central Paris with several suburbs and key destinations, including access to Orly Airport.
-
C.
RER D
RER D is one of the main lines of the Paris regional express network (RER), connecting northern and southern suburbs through central Paris.
-
D.
Transilien
Transilien is the suburban and regional rail network operated by SNCF that serves the Île-de-France (Greater Paris) area.
-
E.
Paris Métro Line 5
Paris Métro Line 5 is a major north–south subway line in Paris that runs from Bobigny–Pablo Picasso to Place d’Italie, serving key stations such as Gare du Nord along the way.
- F. None of above. chosen
Statements (48)
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 A Description of subject: 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.
Referenced by (85)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
RER line A
subject surface form:
Noisy-le-Grand
this entity surface form:
RER A line
subject surface form:
Rosny-sous-Bois
this entity surface form:
RER line A
subject surface form:
Neuilly-sur-Marne
this entity surface form:
RER line A
this entity surface form:
RER Line A
this entity surface form:
RER Line A
subject surface form:
Nation (RER A)
this entity surface form:
RER A line
this entity surface form:
RER A western branch
this entity surface form:
RER line A
this entity surface form:
RER line A