Triple
T15919189
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Taisei Corporation |
E386047
|
entity |
| Predicate | notableProject |
P4
|
FINISHED |
| Object | Seikan Tunnel construction works (participation) |
E1091466
|
NE FINISHED |
How this triple was built (2 steps)
Every LLM step that produced this triple, in pipeline order — named-entity classification, the disambiguation choices (the exact options shown, with the pick highlighted), and the generated description. The batch + timestamp of each is in the Provenance table below.
NER
Named-entity recognition
gpt-5-mini
Instruction
Given a phrase, classify it is english named entity (e.g., persons, organizations, works of art) in Latin script, or not (e.g., literals, dates, URLs, verbose phrases). For disambiguation, the statement where the phrase occurs as object is also given. Please return a JSON object with `phrase` (string, the phrase being analyzed) and `is_ne` (boolean, indicating whether the phrase is a Named Entity).
Input
Phrase: Seikan Tunnel construction works (participation) | Statement: [Taisei Corporation, notableProject, Seikan Tunnel construction works (participation)]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Seikan Tunnel construction works (participation) Context triple: [Taisei Corporation, notableProject, Seikan Tunnel construction works (participation)]
-
A.
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.
-
B.
Honshu–Shikoku Bridge Project
The Honshu–Shikoku Bridge Project is a large-scale Japanese infrastructure initiative that created multiple bridge and expressway routes linking the main island of Honshu with the island of Shikoku across the Seto Inland Sea.
-
C.
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.
-
D.
Minatojima Tunnel
Minatojima Tunnel is an underwater road tunnel in Kobe, Japan, that connects Port Island with the mainland as part of the city's urban transport infrastructure.
-
E.
Seikan Tunnel
chosen
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.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (3 batches)
The batch behind each pipeline step, in order, with when it ran. Timestamps are batch-level — stages were processed in waves, so the object chain (NER → NED1 → NEDg → NED2) reads in order, but predicate / elicitation batches can sit in a different wave.
| Step | Stage | Batch ID | Status | When |
|---|---|---|---|---|
| creating | Elicitation | batch_69d86da686e4819097cbf3b1fc2d881d |
completed | April 10, 2026, 3:25 a.m. |
| NER | Named-entity recognition | batch_69e15680c7b881909150f8b53bc058d4 |
completed | April 16, 2026, 9:37 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ffb5a79b808190850fa9d327f7ef72 |
completed | May 9, 2026, 10:31 p.m. |
Created at: April 10, 2026, 4:52 a.m.