Line 9
E768294
Line 9 is a rapid transit line of the Chongqing Metro system in Chongqing, China, serving as part of the city's expanding urban rail network.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Line 9 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T8949107 — 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 9 Context triple: [Chongqing Metro, hasLine, Line 9]
-
A.
Line 9
Line 9 is a rapid transit line of the Beijing Subway system that serves as part of the city's urban rail network.
-
B.
Line 9
Line 9 is a line of the Mexico City Metro system that serves as one of its key rapid transit routes across the city.
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C.
Line 9
Line 9 is a rapid transit line of the Guangzhou Metro system serving parts of Guangzhou, China.
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D.
Line 9
Line 9 is a major Barcelona Metro line designed as a long, partially automated route connecting key suburban and airport areas with the wider metropolitan network.
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E.
Line 9
Line 9 is a rapid transit line of the Shenzhen Metro system in Shenzhen, China, serving several key districts in the city.
- 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 9 Target entity description: Line 9 is a rapid transit line of the Chongqing Metro system in Chongqing, China, serving as part of the city's expanding urban rail network.
-
A.
Line 9
Line 9 is a rapid transit line of the Guangzhou Metro system serving parts of Guangzhou, China.
-
B.
Line 9
Line 9 is a rapid transit line of the Beijing Subway system that serves as part of the city's urban rail network.
-
C.
Line 9
Line 9 is a rapid transit line of the Shenzhen Metro system in Shenzhen, China, serving several key districts in the city.
-
D.
Line 9
Line 9 is a line of the Mexico City Metro system that serves as one of its key rapid transit routes across the city.
-
E.
Line 9
Line 9 is a rapid transit route within the STC Metro system, serving as one of its numbered urban rail lines.
- F. None of above. chosen
Statements (24)
| Predicate | Object |
|---|---|
| instanceOf | rapid transit line ⓘ |
| city | Chongqing ⓘ |
| continent | Asia ⓘ |
| country | China ⓘ |
| electrification | overhead line ⓘ |
| infrastructureType | urban rail line ⓘ |
| isPartOf |
Chongqing urban rail network
ⓘ
linked to:
Chongqing Metro
|
| locatedIn |
China
ⓘ
Chongqing ⓘ |
| modeOfTransport | rail ⓘ |
| networkRole | part of Chongqing urban rail network ⓘ |
| operator |
Chongqing Rail Transit Corporation
ⓘ
linked to:
Chongqing Rail Transit Group
|
| partOf |
Chongqing Rail Transit
ⓘ
linked to:
Chongqing Metro
|
| primaryUse | passenger transport ⓘ |
| publicTransportType | metro ⓘ |
| railGauge | standard gauge ⓘ |
| regionServed |
Chongqing municipality
ⓘ
linked to:
Chongqing
|
| serves | urban rail network of Chongqing ⓘ |
| serviceType | rapid transit ⓘ |
| status | operational ⓘ |
| system |
Chongqing Rail Transit
ⓘ
linked to:
Chongqing Rail Transit Line 9
|
| trackType | underground and elevated ⓘ |
| transitType | heavy rail ⓘ |
| transportationSystem | Chongqing Metro ⓘ |
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 9 Description of subject: Line 9 is a rapid transit line of the Chongqing Metro system in Chongqing, China, serving as part of the city's expanding urban rail network.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.