Seikan Tunnel
E1091466
UNEXPLORED
The Seikan Tunnel is a 53.85-kilometer undersea railway tunnel in Japan that connects the islands of Honshu and Hokkaido beneath the Tsugaru Strait.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Seikan Tunnel canonical | 2 |
| Seikan Tunnel construction works (participation) | 1 |
| Seikan Tunnel section | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T14237638 — 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: Seikan Tunnel Context triple: [Hokkaido Shinkansen, usesTunnel, Seikan Tunnel]
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A.
Kanmon Tunnel
The Kanmon Tunnel is an undersea railway and road tunnel in Japan that links the islands of Honshu and Kyushu beneath the Kanmon Straits.
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B.
Tateyama Tunnel
Tateyama Tunnel is a high-altitude mountain tunnel in Japan that forms part of the scenic Tateyama Kurobe Alpine Route through the Northern Japan Alps.
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C.
Usui Pass tunnel system
The Usui Pass tunnel system is a series of long railway tunnels in Japan that carry high-speed Shinkansen trains through the mountainous Usui Pass region.
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D.
Ohashi
Ohashi is a neighborhood within Tokyo’s Meguro ward, known as a residential area with convenient urban access.
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E.
Furka Base Tunnel
The Furka Base Tunnel is a long railway tunnel in the Swiss Alps that provides an all-weather, low-level route beneath the Furka Pass, improving connectivity and reliability on the Matterhorn Gotthard Bahn line.
- 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: Seikan Tunnel Target entity description: The Seikan Tunnel is a 53.85-kilometer undersea railway tunnel in Japan that connects the islands of Honshu and Hokkaido beneath the Tsugaru Strait.
-
A.
Kanmon Tunnel
The Kanmon Tunnel is an undersea railway and road tunnel in Japan that links the islands of Honshu and Kyushu beneath the Kanmon Straits.
-
B.
Tateyama Tunnel
Tateyama Tunnel is a high-altitude mountain tunnel in Japan that forms part of the scenic Tateyama Kurobe Alpine Route through the Northern Japan Alps.
-
C.
Usui Pass tunnel system
The Usui Pass tunnel system is a series of long railway tunnels in Japan that carry high-speed Shinkansen trains through the mountainous Usui Pass region.
-
D.
Ohashi
Ohashi is a neighborhood within Tokyo’s Meguro ward, known as a residential area with convenient urban access.
-
E.
Furka Base Tunnel
The Furka Base Tunnel is a long railway tunnel in the Swiss Alps that provides an all-weather, low-level route beneath the Furka Pass, improving connectivity and reliability on the Matterhorn Gotthard Bahn line.
- F. None of above. chosen
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Seikan Tunnel
linked to: Seikan Tunnel