Tianjin Metro Line 2
E633408
Tianjin Metro Line 2 is an east–west rapid transit line in Tianjin, China, that links key urban areas with Tianjin Binhai International Airport and other major transport hubs.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Tianjin Metro Line 2 canonical | 3 |
| Tianjin Metro Line Z2 | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6986888 — 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: Tianjin Metro Line 2 Context triple: [Tianjin Binhai International Airport, connectedBy, Tianjin Metro Line 2]
-
A.
Tianjin Metro Line 6
Tianjin Metro Line 6 is a rapid transit line in Tianjin, China, forming part of the Tianjin Metro network and connecting multiple key districts and transport hubs across the city.
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B.
Tianjin Metro Line 9
Tianjin Metro Line 9 is a rapid transit line in Tianjin, China, that connects the city center with eastern districts and key transport hubs.
-
C.
Tianjin Metro
Tianjin Metro is the rapid transit system serving the city of Tianjin, China, providing urban and suburban rail transportation across the municipality.
-
D.
Shanghai Metro Line 2
Shanghai Metro Line 2 is a major east–west rapid transit line in Shanghai that connects key commercial, financial, and transport hubs including the city’s main shopping streets and both international airports.
-
E.
Yizhuang Line
The Yizhuang Line is a rapid transit line of the Beijing Subway system serving the Yizhuang economic and technological development area in southeastern Beijing.
- 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: Tianjin Metro Line 2 Target entity description: Tianjin Metro Line 2 is an east–west rapid transit line in Tianjin, China, that links key urban areas with Tianjin Binhai International Airport and other major transport hubs.
-
A.
Tianjin Metro Line 6
Tianjin Metro Line 6 is a rapid transit line in Tianjin, China, forming part of the Tianjin Metro network and connecting multiple key districts and transport hubs across the city.
-
B.
Tianjin Metro Line 9
Tianjin Metro Line 9 is a rapid transit line in Tianjin, China, that connects the city center with eastern districts and key transport hubs.
-
C.
Tianjin Metro
Tianjin Metro is the rapid transit system serving the city of Tianjin, China, providing urban and suburban rail transportation across the municipality.
-
D.
Shanghai Metro Line 2
Shanghai Metro Line 2 is a major east–west rapid transit line in Shanghai that connects key commercial, financial, and transport hubs including the city’s main shopping streets and both international airports.
-
E.
Yizhuang Line
The Yizhuang Line is a rapid transit line of the Beijing Subway system serving the Yizhuang economic and technological development area in southeastern Beijing.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
railway line in Tianjin
ⓘ
rapid transit line ⓘ |
| character | underground ⓘ |
| connectsTo |
Tianjin Binhai International Airport
NERFINISHED
ⓘ
Tianjin Railway Station NERFINISHED ⓘ intercity rail services at Tianjin Railway Station ⓘ major transport hubs in Tianjin ⓘ |
| country | China ⓘ |
| direction | east–west ⓘ |
| fareCollection |
contactless smart card
ⓘ
single-journey tickets ⓘ |
| fareSystem | integrated with Tianjin Metro ⓘ |
| hasColor | blue ⓘ |
| hasLanguage | Chinese ⓘ |
| hasNativeName | 天津地铁2号线 NERFINISHED ⓘ |
| hasNativeNameLanguage | zh ⓘ |
| hasPlatformType | island platforms (at many stations) ⓘ |
| hasRouteNumber | 2 ⓘ |
| hasSignageLanguage |
Chinese
ⓘ
English ⓘ |
| hasStation |
Binhai International Airport station
NERFINISHED
ⓘ
Caozhuang station NERFINISHED ⓘ Tianjin Railway Station NERFINISHED ⓘ |
| hasTerminus |
Binhai International Airport station
NERFINISHED
ⓘ
Caozhuang station NERFINISHED ⓘ |
| isInService | true ⓘ |
| isPartOfNetwork | Tianjin urban rail transit network NERFINISHED ⓘ |
| lineName | Line 2 NERFINISHED ⓘ |
| locatedIn |
China
ⓘ
Tianjin NERFINISHED ⓘ |
| numberOfTracks | 2 ⓘ |
| openedInYear | 2012 ⓘ |
| openingDate | 2012-07-01 ⓘ |
| operator | Tianjin Metro Group NERFINISHED ⓘ |
| partOf | Tianjin Metro NERFINISHED ⓘ |
| rollingStockType | electric multiple units ⓘ |
| safetySystem | automatic train protection ⓘ |
| serves |
Tianjin Binhai International Airport
NERFINISHED
ⓘ
Tianjin urban area NERFINISHED ⓘ |
| servesFunction | urban passenger transport ⓘ |
| system | Tianjin Metro NERFINISHED ⓘ |
| timeZone | China Standard Time ⓘ |
| trackGauge | standard gauge ⓘ |
| transitType | rapid transit ⓘ |
| usesElectrification | overhead line ⓘ |
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: Tianjin Metro Line 2 Description of subject: Tianjin Metro Line 2 is an east–west rapid transit line in Tianjin, China, that links key urban areas with Tianjin Binhai International Airport and other major transport hubs.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Tianjin Metro Line Z2