Triple
T16927711
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Nakameguro Station |
E410617
|
entity |
| Predicate | isPartOfNetwork |
P840
|
FINISHED |
| Object | Tokyu railway network |
E177162
|
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: Tokyu railway network | Statement: [Nakameguro Station, isPartOfNetwork, Tokyu railway network]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Tokyu railway network Context triple: [Nakameguro Station, isPartOfNetwork, Tokyu railway network]
-
A.
Tokyu railway network
chosen
The Tokyu railway network is a major private rail system in the Greater Tokyo area, operated by Tokyu Corporation and serving key suburban and urban corridors including central hubs like Shibuya.
-
B.
Keihan Electric Railway network
The Keihan Electric Railway network is a private railway system in Japan that primarily connects the Osaka and Kyoto metropolitan areas, serving as a major commuter and intercity transport corridor in the Kansai region.
-
C.
Keio railway network
The Keio railway network is a private railway system in the Tokyo metropolitan area operated by Keio Corporation, linking central Tokyo with its western suburbs through multiple commuter lines.
-
D.
JR Tōzai Line urban network
The JR Tōzai Line urban network is a commuter rail system in the Kansai region of Japan that connects central Osaka with surrounding areas via the JR Tōzai Line.
-
E.
Tokyu Railways
Tokyu Railways is a major private railway operator in the Greater Tokyo area of Japan, known for its extensive commuter rail network and integration with urban development projects.
- 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_69d886c7b1e481908c3766dfa8c13458 |
completed | April 10, 2026, 5:12 a.m. |
| NER | Named-entity recognition | batch_69e3cdf3fc3c8190a884f7ecd5c47adb |
completed | April 18, 2026, 6:31 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_6a00cfdb6b608190af910e225d942d37 |
completed | May 10, 2026, 6:35 p.m. |
Created at: April 10, 2026, 5:30 a.m.