Tsukuba Express
E375114
Tsukuba Express is a high-speed commuter railway line in Japan connecting central Tokyo with the city of Tsukuba in Ibaraki Prefecture.
All labels observed (7)
How this entity was disambiguated
This entity first appeared as the object of triple T3393871 — 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: Tsukuba Express Context triple: [Akihabara, servedByLine, Tsukuba Express]
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A.
Jōetsu Shinkansen
The Jōetsu Shinkansen is a high-speed rail line in Japan that connects Tokyo with the Niigata region, providing rapid passenger service through central Honshu.
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B.
Yamagata Shinkansen
The Yamagata Shinkansen is a Japanese high-speed "mini-shinkansen" rail line connecting Tokyo with Yamagata Prefecture by upgrading conventional tracks for Shinkansen through-service.
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C.
Kyushu Shinkansen
Kyushu Shinkansen is a high-speed railway line in Japan that connects major cities across the island of Kyushu as part of the national Shinkansen network.
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D.
Hokkaido Shinkansen
Hokkaido Shinkansen is a high-speed railway line in Japan that connects the island of Hokkaido with the main Honshu island via the undersea Seikan Tunnel.
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E.
Keisei Skyliner
Keisei Skyliner is a high-speed limited express train service in Japan that links central Tokyo with Narita International Airport.
- 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: Tsukuba Express Target entity description: Tsukuba Express is a high-speed commuter railway line in Japan connecting central Tokyo with the city of Tsukuba in Ibaraki Prefecture.
-
A.
Jōetsu Shinkansen
The Jōetsu Shinkansen is a high-speed rail line in Japan that connects Tokyo with the Niigata region, providing rapid passenger service through central Honshu.
-
B.
Yamagata Shinkansen
The Yamagata Shinkansen is a Japanese high-speed "mini-shinkansen" rail line connecting Tokyo with Yamagata Prefecture by upgrading conventional tracks for Shinkansen through-service.
-
C.
Kyushu Shinkansen
Kyushu Shinkansen is a high-speed railway line in Japan that connects major cities across the island of Kyushu as part of the national Shinkansen network.
-
D.
Hokkaido Shinkansen
Hokkaido Shinkansen is a high-speed railway line in Japan that connects the island of Hokkaido with the main Honshu island via the undersea Seikan Tunnel.
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E.
Keisei Skyliner
Keisei Skyliner is a high-speed limited express train service in Japan that links central Tokyo with Narita International Airport.
- F. None of above. chosen
Statements (47)
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: Tsukuba Express Description of subject: Tsukuba Express is a high-speed commuter railway line in Japan connecting central Tokyo with the city of Tsukuba in Ibaraki Prefecture.
Referenced by (30)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
Tsukuba, Ibaraki Prefecture, Japan
subject linked to:
Kashiwa, Chiba Prefecture, Japan
linked to: Tsukuba Express
linked to: Tsukuba Express
linked to: Tsukuba Express
linked to: Tsukuba Express
linked to: Tsukuba Express
Tokyo Denki University (near Kita-Senju)
→
railLineAccess
→
Tsukuba Express via Kita-Senju Station
ⓘ
linked to: Tsukuba Express
subject linked to:
Shin-Okachimachi Station on Tsukuba Express
Shin-Okachimachi Station (Tsukuba Express)
→
railwayNetwork
→
Metropolitan Intercity Railway Tsukuba Express network
ⓘ
subject linked to:
Shin-Okachimachi Station on Tsukuba Express
linked to: Tsukuba Express
linked to: Tsukuba Express