C-9 Cercanías Madrid line
E1028220
The C-9 Cercanías Madrid line is a mountain railway service in the Madrid commuter rail network that connects high-altitude destinations in the Sierra de Guadarrama.
All labels observed (1)
| Label | Occurrences |
|---|---|
| C-9 Cercanías Madrid line canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T13201466 — 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: C-9 Cercanías Madrid line Context triple: [Puerto de Cotos, servedBy, C-9 Cercanías Madrid line]
-
A.
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.
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B.
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.
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C.
Cercanías Madrid Line C-8
Cercanías Madrid Line C-8 is a commuter rail line in the Madrid metropolitan area that connects central Madrid with various suburban towns as part of the Cercanías Madrid network.
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D.
Cercanías Madrid Line C-10
Cercanías Madrid Line C-10 is a commuter rail line in the Madrid metropolitan area that connects key suburban zones with central stations as part of the Cercanías Madrid network.
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E.
Cercanías Madrid Line C-3
Cercanías Madrid Line C-3 is a commuter rail line in the Madrid metropolitan area that connects central Madrid with its southern suburbs and surrounding towns as part of the Cercanías Madrid 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: C-9 Cercanías Madrid line Target entity description: The C-9 Cercanías Madrid line is a mountain railway service in the Madrid commuter rail network that connects high-altitude destinations in the Sierra de Guadarrama.
-
A.
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.
-
B.
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.
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C.
Cercanías Madrid Line C-8
Cercanías Madrid Line C-8 is a commuter rail line in the Madrid metropolitan area that connects central Madrid with various suburban towns as part of the Cercanías Madrid network.
-
D.
Cercanías Madrid Line C-10
Cercanías Madrid Line C-10 is a commuter rail line in the Madrid metropolitan area that connects key suburban zones with central stations as part of the Cercanías Madrid network.
-
E.
Cercanías Madrid Line C-3
Cercanías Madrid Line C-3 is a commuter rail line in the Madrid metropolitan area that connects central Madrid with its southern suburbs and surrounding towns as part of the Cercanías Madrid network.
- F. None of above. chosen
Statements (31)
| Predicate | Object |
|---|---|
| instanceOf |
commuter rail line
ⓘ
mountain railway ⓘ |
| connects |
Cercedilla
NERFINISHED
ⓘ
Cotos NERFINISHED ⓘ Puerto de Navacerrada NERFINISHED ⓘ |
| country | Spain ⓘ |
| electrification | overhead line ⓘ |
| gauge | Iberian gauge ⓘ |
| hasStation |
Cercedilla station
NERFINISHED
ⓘ
Cotos station NERFINISHED ⓘ Puerto de Navacerrada station NERFINISHED ⓘ |
| locatedIn |
Community of Madrid
ⓘ
Sierra de Guadarrama NERFINISHED ⓘ |
| locatedInMountainRange | Sierra de Guadarrama NERFINISHED ⓘ |
| network | Red Nacional de los Ferrocarriles Españoles NERFINISHED ⓘ |
| notableFeature | high-altitude railway line in Madrid region ⓘ |
| operator | Renfe Operadora NERFINISHED ⓘ |
| owner | Administrador de Infraestructuras Ferroviarias NERFINISHED ⓘ |
| partOf | Cercanías Madrid NERFINISHED ⓘ |
| partOfSystem | Madrid commuter rail network NERFINISHED ⓘ |
| primaryUse |
access to hiking areas
ⓘ
access to ski resorts ⓘ |
| railwayType | mountain railway ⓘ |
| regionServed | northern Community of Madrid ⓘ |
| serviceType |
commuter rail
ⓘ
tourist railway ⓘ |
| status | in operation ⓘ |
| system | Cercanías Madrid NERFINISHED ⓘ |
| terminus |
Cercedilla station
NERFINISHED
ⓘ
Cotos station NERFINISHED ⓘ |
| trackConfiguration | single track ⓘ |
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: C-9 Cercanías Madrid line Description of subject: The C-9 Cercanías Madrid line is a mountain railway service in the Madrid commuter rail network that connects high-altitude destinations in the Sierra de Guadarrama.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.