Line 3
E660751
Line 3 is a rapid transit route of the Nanjing Metro system in Nanjing, China, serving as one of the city's main north–south subway lines.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Line 3 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7384715 — 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 3 Context triple: [Nanjing Metro, hasLine, Line 3]
-
A.
Line 3
Line 3 is a route of Mexico City’s Metrobús bus rapid transit system that serves key corridors with dedicated lanes and high-capacity articulated buses.
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B.
Line 3
Line 3 is a rapid transit line of the Toronto subway system, commonly known as the Scarborough RT, that served the Scarborough district.
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C.
Line 3
Line 3 is a major north–south route of the Seoul Metropolitan Subway system, connecting key residential and commercial districts across the city and into surrounding areas.
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D.
Line 3
Line 3 is a major rapid transit route of the STC Metro system, serving key districts along its corridor.
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E.
Line 3
Line 3 is a major line of the Saint Petersburg Metro system, serving as one of the city's primary rapid transit routes.
- 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 3 Target entity description: Line 3 is a rapid transit route of the Nanjing Metro system in Nanjing, China, serving as one of the city's main north–south subway lines.
-
A.
Line 3
Line 3 is a major north–south rapid transit route of the Shanghai Metro system, known for its elevated tracks and extensive coverage across the city.
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B.
Line 3
Line 3 is a rapid transit line of the Shenzhen Metro system in Shenzhen, China, serving key urban districts along a major north–south corridor.
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C.
Line 3
Line 3 is one of the main lines of the Mexico City Metro system, running in a generally north–south direction and serving several key residential and commercial areas.
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D.
Line 3
Line 3 is a major rapid transit route of the STC Metro system, serving key districts along its corridor.
-
E.
Line 3
Line 3 is a major north–south route of the Seoul Metropolitan Subway system, connecting key residential and commercial districts across the city and into surrounding areas.
- F. None of above. chosen
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf | rapid transit line ⓘ |
| category |
Nanjing Metro lines
ⓘ
linked to:
Nanjing Metro
rail transport in Jiangsu ⓘ underground rapid transit in China ⓘ |
| cityServed | Nanjing ⓘ |
| continent | Asia ⓘ |
| country | China ⓘ |
| direction | north–south ⓘ |
| electrification | overhead line ⓘ |
| fareSystem | Nanjing Metro fare system ⓘ |
| hasPlatformType |
island platforms
ⓘ
side platforms ⓘ |
| isPartOf | urban rail transit in Nanjing ⓘ |
| lineNumber | 3 ⓘ |
| locatedIn |
China
ⓘ
Jiangsu ⓘ Nanjing ⓘ |
| modeOfTransport | subway ⓘ |
| operator | Nanjing Metro Group ⓘ |
| owner | Nanjing Municipal Government ⓘ |
| partOf | Nanjing Metro ⓘ |
| publicTransport | yes ⓘ |
| role | main north–south subway line of Nanjing ⓘ |
| safetySystem | automatic train protection ⓘ |
| serves | urban areas of Nanjing ⓘ |
| system | Nanjing Metro ⓘ |
| ticketing |
single-journey token
ⓘ
smart card ⓘ |
| trackGauge | standard gauge ⓘ |
| transitType | rapid transit ⓘ |
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 3 Description of subject: Line 3 is a rapid transit route of the Nanjing Metro system in Nanjing, China, serving as one of the city's main north–south subway lines.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.