Line 2
E660750
Line 2 is a major east–west rapid transit route of the Nanjing Metro system in Nanjing, China, connecting key urban districts and transportation hubs.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Line 2 canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T7384714 — 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: [Nanjing Metro, hasLine, Line 2]
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A.
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.
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B.
Line 2
Line 2 is a major east–west rapid transit route of the Shanghai Metro that connects key commercial, residential, and airport hubs across the city.
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C.
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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D.
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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E.
Line 2
Line 2 is a planned second rapid transit line of the Turin Metro system in Turin, Italy, intended to expand the city's urban rail 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: Line 2 Target entity description: Line 2 is a major east–west rapid transit route of the Nanjing Metro system in Nanjing, China, connecting key urban districts and transportation hubs.
-
A.
Line 2
Line 2 is a major east–west rapid transit route of the Shanghai Metro that connects key commercial, residential, and airport hubs across the city.
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B.
Line 2
Line 2 is a major east–west rapid transit route in the Shenzhen Metro system, connecting key commercial and residential districts across the city.
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C.
Line 2
Line 2 is a major route of Mexico City’s Metrobús bus rapid transit system, running along key thoroughfares to connect important residential and commercial areas.
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D.
Line 2
Line 2 is a major rapid transit route of the Guangzhou Metro system that runs through key urban districts and serves as one of the network’s primary north–south corridors.
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E.
Line 2
Line 2 is one of the principal lines of the Mexico City Metro system, running across key central and western areas of the city and serving as a major high-capacity transit corridor.
- F. None of above. chosen
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf |
metro line
ⓘ
public transport route ⓘ |
| city | Nanjing ⓘ |
| connects |
business districts in Nanjing
ⓘ
commercial areas in Nanjing ⓘ interchange stations with other Nanjing Metro lines ⓘ major transport hubs in Nanjing such as railway and bus stations ⓘ residential areas in Nanjing ⓘ transportation hubs in Nanjing ⓘ |
| country | China ⓘ |
| direction | east–west ⓘ |
| fareSystem | integrated Nanjing Metro fare system ⓘ |
| hasFunction | urban mass transit ⓘ |
| hasImportance | backbone line of Nanjing urban transit ⓘ |
| hasInfrastructureType |
elevated metro line
ⓘ
underground metro line ⓘ |
| hasRole | major east–west corridor in Nanjing Metro network ⓘ |
| isPartOf | urban rail transit network of Nanjing ⓘ |
| locatedIn |
China
ⓘ
Jiangsu Province ⓘ
linked to:
Jiangsu
Nanjing ⓘ |
| modeOfTransport | rail ⓘ |
| operator | Nanjing Metro Group ⓘ |
| partOf | Nanjing Metro ⓘ |
| serves | key urban districts of Nanjing ⓘ |
| system |
Nanjing Metro system
ⓘ
linked to:
Nanjing Metro
|
| ticketing |
single-journey tickets accepted
ⓘ
smart card payment accepted ⓘ |
| transitType | rapid transit ⓘ |
| uses | electric multiple unit trains ⓘ |
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 a major east–west rapid transit route of the Nanjing Metro system in Nanjing, China, connecting key urban districts and transportation hubs.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.