Cercanías Madrid Line C-4
E551111
Cercanías Madrid Line C-4 is a key commuter rail line in the Madrid metropolitan area that connects central Madrid with several northern and southern suburbs as part of the Cercanías Madrid network.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Cercanías Madrid Line C-4 canonical | 2 |
| C-4 Cercanías Madrid line | 1 |
| Cercanías Madrid C4 | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5535751 — 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: Cercanías Madrid Line C-4 Context triple: [Madrid Chamartín railway station, servedByLine, Cercanías Madrid Line C-4]
-
A.
Cercanías Madrid Line C-2
Cercanías Madrid Line C-2 is a commuter rail line in the Madrid metropolitan area that connects central Madrid with its northeastern suburbs as part of the Cercanías Madrid network.
-
B.
Cercanías Madrid Line C-1
Cercanías Madrid Line C-1 is a suburban rail line in the Madrid commuter network that connects central Madrid with Adolfo Suárez Madrid–Barajas Airport and other key urban areas.
-
C.
Cercanías Madrid commuter rail
Cercanías Madrid commuter rail is a regional train network that connects Madrid with its surrounding metropolitan and suburban areas, providing frequent and rapid transit for daily commuters.
-
D.
Metro Ligero de Madrid
Metro Ligero de Madrid is a light rail system serving several suburban and peripheral areas of Madrid, complementing the city's main metro network.
-
E.
Line 4 (Madrid Metro)
Line 4 of the Madrid Metro is a rapid transit line serving several northern and eastern districts of Madrid, connecting key residential and commercial areas to the city’s broader subway network.
- 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: Cercanías Madrid Line C-4 Target entity description: Cercanías Madrid Line C-4 is a key commuter rail line in the Madrid metropolitan area that connects central Madrid with several northern and southern suburbs as part of the Cercanías Madrid network.
-
A.
Cercanías Madrid Line C-2
Cercanías Madrid Line C-2 is a commuter rail line in the Madrid metropolitan area that connects central Madrid with its northeastern suburbs as part of the Cercanías Madrid network.
-
B.
Cercanías Madrid Line C-1
Cercanías Madrid Line C-1 is a suburban rail line in the Madrid commuter network that connects central Madrid with Adolfo Suárez Madrid–Barajas Airport and other key urban areas.
-
C.
Cercanías Madrid commuter rail
Cercanías Madrid commuter rail is a regional train network that connects Madrid with its surrounding metropolitan and suburban areas, providing frequent and rapid transit for daily commuters.
-
D.
Metro Ligero de Madrid
Metro Ligero de Madrid is a light rail system serving several suburban and peripheral areas of Madrid, complementing the city's main metro network.
-
E.
Line 4 (Madrid Metro)
Line 4 of the Madrid Metro is a rapid transit line serving several northern and eastern districts of Madrid, connecting key residential and commercial areas to the city’s broader subway network.
- F. None of above. chosen
Statements (43)
| Predicate | Object |
|---|---|
| instanceOf | commuter rail line ⓘ |
| connects |
northern corridor of Madrid metropolitan area
ⓘ
southern corridor of Madrid metropolitan area ⓘ |
| country | Spain ⓘ |
| electrification | 3 kV DC overhead line ⓘ |
| fareSystem | Consorcio Regional de Transportes de Madrid zonal system ⓘ |
| hasServicePattern |
all-stations stopping services
ⓘ
semi-fast commuter services ⓘ |
| hasStation |
Alcobendas – San Sebastián de los Reyes railway station
NERFINISHED
ⓘ
Colmenar Viejo railway station NERFINISHED ⓘ Getafe Centro railway station NERFINISHED ⓘ Parla railway station NERFINISHED ⓘ Tres Cantos railway station NERFINISHED ⓘ |
| hasTerminus |
Colmenar Viejo
NERFINISHED
ⓘ
Parla NERFINISHED ⓘ |
| isKeyCorridorFor | daily commuters in Madrid metropolitan area ⓘ |
| locatedIn |
Community of Madrid
ⓘ
Madrid metropolitan area NERFINISHED ⓘ |
| network | Cercanías Madrid NERFINISHED ⓘ |
| operator | Renfe Operadora NERFINISHED ⓘ |
| owner | Administrador de Infraestructuras Ferroviarias NERFINISHED ⓘ |
| partOf | Cercanías Madrid NERFINISHED ⓘ |
| passesThrough |
Alcobendas – San Sebastián de los Reyes
NERFINISHED
ⓘ
Getafe NERFINISHED ⓘ Madrid-Atocha Cercanías railway station NERFINISHED ⓘ Madrid-Chamartín Clara Campoamor railway station NERFINISHED ⓘ Madrid-Sol railway station NERFINISHED ⓘ Tres Cantos NERFINISHED ⓘ |
| primaryFunction | suburban passenger transport ⓘ |
| railNetworkRole | north–south trunk line through central Madrid ⓘ |
| serves |
central Madrid
ⓘ
northern suburbs of Madrid ⓘ southern suburbs of Madrid ⓘ |
| serviceType | commuter rail ⓘ |
| symbol | C-4 NERFINISHED ⓘ |
| trackGauge | Iberian gauge ⓘ |
| transportMode | rail ⓘ |
| usesInfrastructure | Madrid north–south rail tunnel NERFINISHED ⓘ |
| usesRollingStock |
446 series EMU
ⓘ
447 series EMU NERFINISHED ⓘ 450 series EMU ⓘ 451 series EMU ⓘ Civia 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: Cercanías Madrid Line C-4 Description of subject: Cercanías Madrid Line C-4 is a key commuter rail line in the Madrid metropolitan area that connects central Madrid with several northern and southern suburbs as part of the Cercanías Madrid network.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Cercanías Madrid C4
this entity surface form:
C-4 Cercanías Madrid line