Tianjin Metro Line 9
E610387
Tianjin Metro Line 9 is a rapid transit line in Tianjin, China, that connects the city center with eastern districts and key transport hubs.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Tianjin Metro Line 9 canonical | 2 |
| Tianjin Metro Line M9 | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6542572 — 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 9 Context triple: [Tianjin West Railway Station, hasTransportConnection, Tianjin Metro Line 9]
-
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
Tianjin Metro is the rapid transit system serving the city of Tianjin, China, providing urban and suburban rail transportation across the municipality.
-
C.
Shanghai Metro Line 9
Shanghai Metro Line 9 is a major east–west rapid transit line in Shanghai that connects key residential, commercial, and historic areas, including the Former French Concession, with the broader metro network.
-
D.
Shijiazhuang Metro
Shijiazhuang Metro is the rapid transit system serving the city of Shijiazhuang, providing urban rail transportation across the capital of Hebei Province in China.
-
E.
Beijing Subway Line 16
Beijing Subway Line 16 is a rapid transit line in Beijing’s subway network that runs generally north–south, connecting the city’s northern suburbs with central and southwestern districts.
- 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 9 Target entity description: Tianjin Metro Line 9 is a rapid transit line in Tianjin, China, that connects the city center with eastern districts and key 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
Tianjin Metro is the rapid transit system serving the city of Tianjin, China, providing urban and suburban rail transportation across the municipality.
-
C.
Shanghai Metro Line 9
Shanghai Metro Line 9 is a major east–west rapid transit line in Shanghai that connects key residential, commercial, and historic areas, including the Former French Concession, with the broader metro network.
-
D.
Shijiazhuang Metro
Shijiazhuang Metro is the rapid transit system serving the city of Shijiazhuang, providing urban rail transportation across the capital of Hebei Province in China.
-
E.
Beijing Subway Line 16
Beijing Subway Line 16 is a rapid transit line in Beijing’s subway network that runs generally north–south, connecting the city’s northern suburbs with central and southwestern districts.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
railway line in China
ⓘ
rapid transit line ⓘ |
| connectsTo | key transport hubs in Tianjin ⓘ |
| connectsUrbanArea |
central Tianjin
ⓘ
eastern coastal area of Tianjin ⓘ |
| electrification | overhead line ⓘ |
| environmentalImpact |
reduces road traffic congestion in Tianjin
ⓘ
reduces urban air pollution compared to car use ⓘ |
| fareCollection | automatic fare collection system ⓘ |
| fareSystem | integrated with Tianjin Metro fare system ⓘ |
| hasAccessibility |
stations equipped with elevators
ⓘ
stations equipped with escalators ⓘ stations equipped with tactile paving for the visually impaired ⓘ |
| hasColor | line color used in Tianjin Metro maps ⓘ |
| hasInformationSystem |
onboard audio announcements
ⓘ
real-time passenger information displays ⓘ route maps in trains and stations ⓘ |
| hasPlatformType |
island platforms
ⓘ
side platforms ⓘ |
| hasRollingStock | electric multiple units ⓘ |
| hasRouteOrientation | west–east ⓘ |
| hasSecurity | patrols by metro security staff ⓘ |
| hasServiceType | all-stations service ⓘ |
| isElectrified | yes ⓘ |
| isGradeSeparated | yes ⓘ |
| isPartOfNetwork | urban rail transit in Tianjin ⓘ |
| isPublicTransport | yes ⓘ |
| isUrbanRail | yes ⓘ |
| locatedIn | Tianjin ⓘ |
| locatedInCountry | China ⓘ |
| operator |
Tianjin Metro Group
ⓘ
linked to:
Tianjin Metro Group Co., Ltd.
|
| owner |
Tianjin municipal authorities
ⓘ
linked to:
Tianjin Municipal People’s Government
|
| partOf | Tianjin Metro ⓘ |
| primaryFunction | passenger transport ⓘ |
| railwaySignalling | metro signalling system ⓘ |
| safetyFeatures |
CCTV monitoring
ⓘ
emergency communication systems ⓘ platform screen doors at some stations ⓘ |
| serves |
Tianjin city center
ⓘ
eastern districts of Tianjin ⓘ |
| system | Tianjin Metro ⓘ |
| trackGauge | standard gauge ⓘ |
| transitType | rapid transit ⓘ |
| usesTicketing |
contactless smart card
ⓘ
single-journey ticket ⓘ |
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 9 Description of subject: Tianjin Metro Line 9 is a rapid transit line in Tianjin, China, that connects the city center with eastern districts and key transport hubs.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Tianjin Metro Line 9