Triple
T15616339
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Chūkyō metropolitan area |
E375420
|
entity |
| Predicate | servedByRailway |
P848
|
FINISHED |
| Object | Tōkaidō Shinkansen |
E63499
|
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: Tōkaidō Shinkansen | Statement: [Chūkyō metropolitan area, servedByRailway, Tōkaidō Shinkansen]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Tōkaidō Shinkansen Context triple: [Chūkyō metropolitan area, servedByRailway, Tōkaidō Shinkansen]
-
A.
Tokaido Shinkansen
chosen
The Tokaido Shinkansen is Japan’s pioneering high-speed rail line connecting Tokyo with Osaka and other major cities, renowned for its speed, punctuality, and heavy passenger usage.
-
B.
Chūō Shinkansen
The Chūō Shinkansen is Japan’s next-generation maglev high-speed rail line planned to connect Tokyo and Nagoya (and eventually Osaka) at ultra-high speeds using superconducting magnetic levitation technology.
-
C.
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.
-
D.
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.
-
E.
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.
- 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_69d85ccf2794819096cda4cbcb02d478 |
completed | April 10, 2026, 2:13 a.m. |
| NER | Named-entity recognition | batch_69e04e980b748190b43c0b650bf1e629 |
completed | April 16, 2026, 2:51 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ffb0335a0c8190ade4c2f78df3d113 |
completed | May 9, 2026, 10:07 p.m. |
Created at: April 10, 2026, 4:13 a.m.