Mita Line
E373355
The Mita Line is a major Tokyo subway line operated by the Tokyo Metropolitan Bureau of Transportation, running north–south through central Tokyo and connecting key residential and business districts.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Mita Line canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T1640780 — 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: Mita Line Context triple: [Toei Subway, hasLine, Mita Line]
-
A.
Imazatosuji Line
The Imazatosuji Line is a rapid transit line in Osaka, Japan, operated by Osaka Metro and serving as one of the city’s main north–south subway corridors.
-
B.
Saikyō Line
The Saikyō Line is a major JR East railway line in the Tokyo metropolitan area that connects central Tokyo with Saitama Prefecture, serving as a key commuter route.
-
C.
Tanagawa Line
The Tanagawa Line is a short commuter railway line in Osaka Prefecture, Japan, operated by Nankai Electric Railway and serving local passengers near the coastal area.
-
D.
Sakaisuji Line
The Sakaisuji Line is a rapid transit line in Osaka, Japan, forming part of the Osaka Metro network and connecting key districts through north–south underground service.
-
E.
Sōbu Line
The Sōbu Line is a major Japan Railways (JR) commuter and intercity railway line in the Tokyo–Chiba area, connecting central Tokyo with eastern suburbs and cities in Chiba Prefecture.
- 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: Mita Line Target entity description: The Mita Line is a major Tokyo subway line operated by the Tokyo Metropolitan Bureau of Transportation, running north–south through central Tokyo and connecting key residential and business districts.
-
A.
Imazatosuji Line
The Imazatosuji Line is a rapid transit line in Osaka, Japan, operated by Osaka Metro and serving as one of the city’s main north–south subway corridors.
-
B.
Saikyō Line
The Saikyō Line is a major JR East railway line in the Tokyo metropolitan area that connects central Tokyo with Saitama Prefecture, serving as a key commuter route.
-
C.
Tanagawa Line
The Tanagawa Line is a short commuter railway line in Osaka Prefecture, Japan, operated by Nankai Electric Railway and serving local passengers near the coastal area.
-
D.
Sakaisuji Line
The Sakaisuji Line is a rapid transit line in Osaka, Japan, forming part of the Osaka Metro network and connecting key districts through north–south underground service.
-
E.
Sōbu Line
The Sōbu Line is a major Japan Railways (JR) commuter and intercity railway line in the Tokyo–Chiba area, connecting central Tokyo with eastern suburbs and cities in Chiba Prefecture.
- F. None of above. chosen
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf |
railway line
ⓘ
subway line ⓘ |
| character |
commuter rail
ⓘ
underground ⓘ |
| connects |
business districts in central Tokyo
ⓘ
residential districts in northern Tokyo ⓘ |
| country | Japan ⓘ |
| direction | north–south ⓘ |
| electrification | 1,500 V DC overhead catenary ⓘ |
| fareSystem | integrated with Tokyo subway fare system ⓘ |
| hasOperatorType | public operator ⓘ |
| lineColor | blue ⓘ |
| lineSymbol | I ⓘ |
| locatedIn |
Japan
ⓘ
Tokyo ⓘ |
| networkRole | major Tokyo subway line ⓘ |
| numberOfTracks | 2 ⓘ |
| openingDate | 1968 ⓘ |
| operator |
Toei Subway
ⓘ
Tokyo Metropolitan Bureau of Transportation ⓘ |
| owner | Tokyo Metropolitan Government ⓘ |
| partOf | Tokyo urban rail network ⓘ |
| primaryUse | urban passenger transport ⓘ |
| serves | commuters ⓘ |
| servesArea |
central Tokyo
ⓘ
northern Tokyo ⓘ |
| servicePattern | through services onto other railway lines ⓘ |
| system |
Toei Subway network
ⓘ
linked to:
Toei Subway
|
| trackGauge | 1,067 mm ⓘ |
| transportMode | rapid 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: Mita Line Description of subject: The Mita Line is a major Tokyo subway line operated by the Tokyo Metropolitan Bureau of Transportation, running north–south through central Tokyo and connecting key residential and business districts.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.