Triple
T2619682
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Bunkyō |
E58973
|
entity |
| Predicate | transportServedBy |
P1298
|
FINISHED |
| Object | Tokyo Metro Chiyoda Line |
E214411
|
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: Tokyo Metro Chiyoda Line | Statement: [Bunkyō, transportServedBy, Tokyo Metro Chiyoda Line]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Tokyo Metro Chiyoda Line Context triple: [Bunkyō, transportServedBy, Tokyo Metro Chiyoda Line]
-
A.
Tokyo Metro Chiyoda Line
chosen
The Tokyo Metro Chiyoda Line is a major Tokyo subway line running north–south through central districts and into suburban areas, connecting key hubs such as Omotesando, Otemachi, and Yoyogi-Uehara.
-
B.
Tokyo Metro Marunouchi Line
The Tokyo Metro Marunouchi Line is one of Tokyo’s main subway lines, running in a loop-like route through central districts and connecting major hubs such as Shinjuku, Tokyo, and Ikebukuro.
-
C.
Tokyo Metro Hanzomon Line
The Tokyo Metro Hanzomon Line is a major Tokyo subway line that runs east–west across the city center, linking Shibuya with key business and residential districts and offering through services onto private railway lines.
-
D.
Tokyo Metro Yurakuchō Line
The Tokyo Metro Yurakuchō Line is a major Tokyo subway line running east–west across the city, connecting central business districts with residential areas and key transit hubs.
-
E.
Tokyo Metro Hibiya Line
The Tokyo Metro Hibiya Line is a major Tokyo subway line running through central districts such as Chiyoda, Minato, and Taito, providing key commuter and interline connections across the city.
- 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_69ab4ac444dc819099614e534dd6021f |
completed | March 6, 2026, 9:44 p.m. |
| NER | Named-entity recognition | batch_69abd8962b348190a059519778ea4dba |
completed | March 7, 2026, 7:49 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69be4d59f188819093e3a6c7037593cf |
completed | March 21, 2026, 7:48 a.m. |
Created at: March 6, 2026, 9:50 p.m.