JR East rail lines
E694153
JR East rail lines are a network of passenger railway services operated by the East Japan Railway Company that connect major cities and regions across eastern Honshu, including Chiba.
All labels observed (17)
How this entity was disambiguated
This entity first appeared as the object of triple T7798995 — 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: JR East rail lines Context triple: [Chiba, isServedBy, JR East rail lines]
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A.
JR Tōzai Line
The JR Tōzai Line is a commuter rail line in the Kansai region of Japan operated by West Japan Railway Company (JR West), connecting Kyōbashi in Osaka with Amagasaki in Hyōgo via central Osaka.
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B.
JR Central conventional lines
JR Central conventional lines are the network of standard (non–Shinkansen) passenger and freight railway lines operated by Central Japan Railway Company across the Chūbu region of Japan.
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C.
JR Chuo-Sobu Line
The JR Chuo-Sobu Line is a major local railway line in Tokyo and surrounding areas operated by JR East, connecting central city districts and numerous commuter neighborhoods.
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D.
JR East Nambu Line
The JR East Nambu Line is a commuter rail line in the Tokyo–Kawasaki area of Japan that connects multiple suburban communities and facilitates daily passenger transit across the Tama region.
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E.
Keisei Electric Railway lines
Keisei Electric Railway lines are a group of private railway routes in the Greater Tokyo area best known for linking central Tokyo with Narita International Airport and serving commuter and interurban travel 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: JR East rail lines Target entity description: JR East rail lines are a network of passenger railway services operated by the East Japan Railway Company that connect major cities and regions across eastern Honshu, including Chiba.
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A.
JR Tōzai Line
The JR Tōzai Line is a commuter rail line in the Kansai region of Japan operated by West Japan Railway Company (JR West), connecting Kyōbashi in Osaka with Amagasaki in Hyōgo via central Osaka.
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B.
JR Central conventional lines
JR Central conventional lines are the network of standard (non–Shinkansen) passenger and freight railway lines operated by Central Japan Railway Company across the Chūbu region of Japan.
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C.
JR Chuo-Sobu Line
The JR Chuo-Sobu Line is a major local railway line in Tokyo and surrounding areas operated by JR East, connecting central city districts and numerous commuter neighborhoods.
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D.
JR East Nambu Line
The JR East Nambu Line is a commuter rail line in the Tokyo–Kawasaki area of Japan that connects multiple suburban communities and facilitates daily passenger transit across the Tama region.
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E.
Keisei Electric Railway lines
Keisei Electric Railway lines are a group of private railway routes in the Greater Tokyo area best known for linking central Tokyo with Narita International Airport and serving commuter and interurban travel in Chiba Prefecture.
- F. None of above. chosen
Statements (60)
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: JR East rail lines Description of subject: JR East rail lines are a network of passenger railway services operated by the East Japan Railway Company that connect major cities and regions across eastern Honshu, including Chiba.
Referenced by (52)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: JR East rail lines
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subject linked to:
Toro Station on Utsunomiya Line
linked to: JR East rail lines
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subject linked to:
Ou Main Line
linked to: JR East rail lines
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subject linked to:
Tabata district
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linked to: JR East rail lines
linked to: JR East rail lines