Tianjin Metro Line B4
E658200
Tianjin Metro Line B4 is a planned rapid transit line in Tianjin, China, intended to expand the city’s urban rail network and improve regional connectivity.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Tianjin Metro Line B4 canonical | 1 |
| Tianjin Metro Line Z4 | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7119458 — 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 B4 Context triple: [Tianjin Metro, hasLine, Tianjin Metro Line B4]
-
A.
Tianjin Metro Line B1
Tianjin Metro Line B1 is a planned rapid transit line in Tianjin, China, intended to expand the city’s urban rail network and improve cross-district connectivity.
-
B.
Tianjin Metro Line 10
Tianjin Metro Line 10 is a rapid transit line in Tianjin, China, forming part of the city’s urban subway network and serving key residential and commercial areas along its route.
-
C.
Tianjin Metro Line 5
Tianjin Metro Line 5 is a rapid transit line in Tianjin, China, forming part of the city's urban subway network and connecting multiple districts along a north–south corridor.
-
D.
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.
-
E.
Tianjin Metro Line 3
Tianjin Metro Line 3 is a major rapid transit line in Tianjin, China, running north–south through key urban districts and serving as an important corridor in the city's subway 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: Tianjin Metro Line B4 Target entity description: Tianjin Metro Line B4 is a planned rapid transit line in Tianjin, China, intended to expand the city’s urban rail network and improve regional connectivity.
-
A.
Tianjin Metro Line B1
Tianjin Metro Line B1 is a planned rapid transit line in Tianjin, China, intended to expand the city’s urban rail network and improve cross-district connectivity.
-
B.
Tianjin Metro Line 10
Tianjin Metro Line 10 is a rapid transit line in Tianjin, China, forming part of the city’s urban subway network and serving key residential and commercial areas along its route.
-
C.
Tianjin Metro Line 5
Tianjin Metro Line 5 is a rapid transit line in Tianjin, China, forming part of the city's urban subway network and connecting multiple districts along a north–south corridor.
-
D.
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.
-
E.
Tianjin Metro Line 3
Tianjin Metro Line 3 is a major rapid transit line in Tianjin, China, running north–south through key urban districts and serving as an important corridor in the city's subway network.
- F. None of above. chosen
Statements (24)
| Predicate | Object |
|---|---|
| instanceOf | planned metro line ⓘ |
| cityServed | Tianjin NERFINISHED ⓘ |
| continent | Asia ⓘ |
| country | China ⓘ |
| electrification | electric traction (planned) ⓘ |
| hasRouteType | urban passenger service ⓘ |
| infrastructureType | urban metro line ⓘ |
| lineDesignation | B4 ⓘ |
| locatedIn |
North China
NERFINISHED
ⓘ
Tianjin NERFINISHED ⓘ |
| modeOfTransport | rail ⓘ |
| network | Tianjin Metro network NERFINISHED ⓘ |
| operator | Tianjin Metro (planned) NERFINISHED ⓘ |
| owner | Tianjin municipal government NERFINISHED ⓘ |
| partOf |
Tianjin Metro
NERFINISHED
ⓘ
Tianjin urban rail transit network NERFINISHED ⓘ |
| publicTransport | yes ⓘ |
| purpose |
expand Tianjin’s urban rail network
ⓘ
improve regional connectivity ⓘ |
| railGauge | standard gauge (planned) ⓘ |
| regionServed | Tianjin Municipality NERFINISHED ⓘ |
| serviceType | rapid transit ⓘ |
| status | planned ⓘ |
| transportationSystem | urban rail 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: Tianjin Metro Line B4 Description of subject: Tianjin Metro Line B4 is a planned rapid transit line in Tianjin, China, intended to expand the city’s urban rail network and improve regional connectivity.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Tianjin Metro Line Z4