Line 8 (Madrid Metro)
E152453
Line 8 of the Madrid Metro is a rapid transit line that connects central Madrid with key locations including the Adolfo Suárez Madrid–Barajas Airport and the IFEMA exhibition center.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Line 8 (Madrid Metro) canonical | 5 |
| Madrid Metro Line 8 | 2 |
| Line 8 of Madrid Metro | 1 |
| Madrid–Barajas Airport via Line 8 | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1226493 — 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: Line 8 (Madrid Metro) Context triple: [Madrid Metro, hasLine, Line 8 (Madrid Metro)]
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A.
Line 7 (Madrid Metro)
Line 7 of the Madrid Metro is a major rapid transit line running in an east–west direction across the city, connecting key residential and commercial areas.
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B.
Line 6 (Madrid Metro)
Line 6 of the Madrid Metro, also known as the Circular line, is a heavily used underground route that forms a loop around central Madrid, connecting numerous key interchange stations across the network.
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C.
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.
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D.
Line 5 (Madrid Metro)
Line 5 of the Madrid Metro is a major rapid transit line running in an east–west direction across the city, connecting key residential and commercial areas.
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E.
Line 3 (Madrid Metro)
Line 3 of the Madrid Metro is a major north–south underground line in Madrid, Spain, connecting key central and residential areas and serving as one of the network’s primary transit corridors.
- 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: Line 8 (Madrid Metro) Target entity description: Line 8 of the Madrid Metro is a rapid transit line that connects central Madrid with key locations including the Adolfo Suárez Madrid–Barajas Airport and the IFEMA exhibition center.
-
A.
Line 7 (Madrid Metro)
Line 7 of the Madrid Metro is a major rapid transit line running in an east–west direction across the city, connecting key residential and commercial areas.
-
B.
Line 6 (Madrid Metro)
Line 6 of the Madrid Metro, also known as the Circular line, is a heavily used underground route that forms a loop around central Madrid, connecting numerous key interchange stations across the network.
-
C.
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.
-
D.
Line 5 (Madrid Metro)
Line 5 of the Madrid Metro is a major rapid transit line running in an east–west direction across the city, connecting key residential and commercial areas.
-
E.
Line 3 (Madrid Metro)
Line 3 of the Madrid Metro is a major north–south underground line in Madrid, Spain, connecting key central and residential areas and serving as one of the network’s primary transit corridors.
- F. None of above. chosen
Statements (50)
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: Line 8 (Madrid Metro) Description of subject: Line 8 of the Madrid Metro is a rapid transit line that connects central Madrid with key locations including the Adolfo Suárez Madrid–Barajas Airport and the IFEMA exhibition center.
Referenced by (9)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Madrid Metro Line 8
this entity surface form:
Line 8 of Madrid Metro
this entity surface form:
Madrid–Barajas Airport via Line 8
subject surface form:
Terminal 4 (Adolfo Suárez Madrid–Barajas Airport)
this entity surface form:
Madrid Metro Line 8