Tianjin Metro Line 3
E645348
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.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Tianjin Metro Line 3 canonical | 3 |
| Tianjin Line 3 | 1 |
| Tianjin Metro Line B3 | 1 |
| 天津地铁3号线 | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7119450 — 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 3 Context triple: [Tianjin Metro, hasLine, Tianjin Metro Line 3]
-
A.
Tianjin Metro Line 2
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.
-
B.
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.
-
C.
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.
-
D.
Tianjin Metro Line 1
Tianjin Metro Line 1 is a major rapid transit line in Tianjin, China, forming part of the city's primary urban rail network and connecting key residential and commercial areas.
-
E.
Tianjin Metro
Tianjin Metro is the rapid transit system serving the city of Tianjin, China, providing urban and suburban rail transportation across the municipality.
- 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 3 Target entity description: 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.
-
A.
Tianjin Metro Line 2
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.
-
B.
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.
-
C.
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.
-
D.
Tianjin Metro Line 1
Tianjin Metro Line 1 is a major rapid transit line in Tianjin, China, forming part of the city's primary urban rail network and connecting key residential and commercial areas.
-
E.
Tianjin Metro
Tianjin Metro is the rapid transit system serving the city of Tianjin, China, providing urban and suburban rail transportation across the municipality.
- F. None of above. chosen
Statements (43)
| Predicate | Object |
|---|---|
| instanceOf |
public transport infrastructure
ⓘ
rapid transit line ⓘ |
| accessibility |
stations equipped with elevators (at many stations)
ⓘ
stations equipped with escalators (at many stations) ⓘ |
| alignment | north–south ⓘ |
| category |
Metro lines in China
ⓘ
Rail transport in Tianjin ⓘ |
| character |
elevated
ⓘ
underground ⓘ |
| cityServed | Tianjin ⓘ |
| color | blue ⓘ |
| country | China ⓘ |
| electrification |
DC electric power
ⓘ
overhead line ⓘ |
| environmentalImpact |
reduces road traffic congestion in Tianjin
ⓘ
supports low-emission urban transport in Tianjin ⓘ |
| fareCollection | automatic fare collection gates ⓘ |
| fareSystem | Tianjin Metro unified fare system ⓘ |
| function | urban mass transit ⓘ |
| hasAbbreviation |
Line 3
ⓘ
Tianjin Line 3 ⓘ
linked to:
Tianjin Metro Line 3
|
| languageOfName | Chinese ⓘ |
| lineNumber | 3 ⓘ |
| locatedIn |
People's Republic of China
ⓘ
linked to:
China
Tianjin ⓘ |
| networkRole | backbone line of Tianjin Metro ⓘ |
| operator | Tianjin Metro Group Co., Ltd. ⓘ |
| owner |
Tianjin Municipal Government
ⓘ
linked to:
Tianjin Municipal People’s Government
|
| partOf | Tianjin Metro ⓘ |
| platformType | island platforms (at many stations) ⓘ |
| primaryUse | passenger transport ⓘ |
| regionServed |
Tianjin Municipality
ⓘ
linked to:
Tianjin
|
| role | major corridor in Tianjin subway network ⓘ |
| safetySystem |
automatic train control
ⓘ
automatic train protection ⓘ |
| serves | key urban districts of Tianjin ⓘ |
| system | Tianjin Metro ⓘ |
| ticketing |
contactless smart card accepted
ⓘ
single-journey tokens accepted ⓘ |
| trackGauge | standard gauge ⓘ |
| transitType | rapid transit ⓘ |
| transportMode | rail ⓘ |
| uses | electric multiple units ⓘ |
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 3 Description of subject: 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.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Tianjin Metro Line 3
linked to: Tianjin Metro Line 3
linked to: Tianjin Metro Line 3