Line 2
E641772
Line 2 is one of the main lines of the Sofia Metro rapid transit system in Sofia, Bulgaria, connecting key residential districts with the city center and major transport hubs.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Line 2 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7114675 — 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 2 Context triple: [Sofia Metro, hasLine, Line 2]
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A.
Line 2
Line 2 is a circular rapid transit line of the Beijing Subway that runs around the city center, roughly following the path of the old city walls and the 2nd Ring Road.
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B.
Line 2
Line 2 is a trolleybus route within Geneva’s public transport system that serves as one of the city’s main electric bus lines.
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C.
Line 2
Line 2 is a major route of the Tunis Metro light rail network, serving key districts within the Tunis metropolitan area.
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D.
Line 2
Line 2 is a major circular line of the Seoul Metropolitan Subway system, known for being one of the busiest and most important routes in the network.
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E.
Line 2
Line 2 is a major rapid transit route of the Santo Domingo Metro system in the Dominican Republic, serving key east–west corridors of the capital.
- 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 2 Target entity description: Line 2 is one of the main lines of the Sofia Metro rapid transit system in Sofia, Bulgaria, connecting key residential districts with the city center and major transport hubs.
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A.
Line 2
Line 2 is one of the main rapid transit routes of the Athens Metro, connecting key central and suburban areas of the Greek capital.
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B.
Line 2
Line 2 is a major rapid transit route of the STC Metro system, serving key districts along one of the network’s primary corridors.
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C.
Line 2
Line 2 is a rapid transit line of the Barcelona Metro system that serves several central and northern neighborhoods of the city.
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D.
Line 2
Line 2 is a major route of the Tunis Metro light rail network, serving key districts within the Tunis metropolitan area.
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E.
Line 2
Line 2 is one of the main lines of the Santiago Metro in Chile, running in a generally north–south direction and serving several central and densely populated areas of the city.
- F. None of above. chosen
Statements (25)
| Predicate | Object |
|---|---|
| instanceOf | metro line ⓘ |
| cityServed | Sofia NERFINISHED ⓘ |
| connects |
Sofia city center
NERFINISHED
ⓘ
major transport hubs in Sofia ⓘ residential districts of Sofia ⓘ |
| country | Bulgaria ⓘ |
| electrification | third rail ⓘ |
| hasInterchangeStation |
National Palace of Culture II Metro Station
NERFINISHED
ⓘ
Serdika II Metro Station NERFINISHED ⓘ |
| hasInterchangeWith | Line 1 (Sofia Metro) NERFINISHED ⓘ |
| hasStation |
Central Railway Station (Sofia Metro)
NERFINISHED
ⓘ
James Bourchier Metro Station NERFINISHED ⓘ Nadezhda Metro Station NERFINISHED ⓘ National Palace of Culture II Metro Station NERFINISHED ⓘ Serdika II Metro Station NERFINISHED ⓘ |
| locatedIn |
Bulgaria
NERFINISHED
ⓘ
Sofia NERFINISHED ⓘ |
| operator | Metropoliten JSC NERFINISHED ⓘ |
| partOf | Sofia Metro NERFINISHED ⓘ |
| publicTransportType | urban rail transit line ⓘ |
| railGauge | standard gauge ⓘ |
| serves |
Central Bus Station Sofia area
NERFINISHED
ⓘ
Central Railway Station Sofia area NERFINISHED ⓘ |
| systemType | rapid transit ⓘ |
| transportNetwork | Sofia Metro 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: Line 2 Description of subject: Line 2 is one of the main lines of the Sofia Metro rapid transit system in Sofia, Bulgaria, connecting key residential districts with the city center and major transport hubs.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.