Triple
T11052800
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Tokyo Metro Yurakuchō Line |
E261298
|
entity |
| Predicate | openedSection |
P28341
|
FINISHED |
| Object | Ikebukuro Station–Ginza-itchōme Station |
E145574
|
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: Ikebukuro Station–Ginza-itchōme Station | Statement: [Tokyo Metro Yurakuchō Line, openedSection, Ikebukuro Station–Ginza-itchōme Station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Ikebukuro Station–Ginza-itchōme Station Context triple: [Tokyo Metro Yurakuchō Line, openedSection, Ikebukuro Station–Ginza-itchōme Station]
-
A.
Ginza Station
Ginza Station is a major Tokyo Metro subway hub located in Tokyo’s upscale Ginza district, serving as a key access point to the area’s shopping, dining, and entertainment.
-
B.
Ikebukuro Station
chosen
Ikebukuro Station is one of Tokyo’s busiest railway hubs, serving multiple JR and private lines and acting as a major commercial and transit center in the Ikebukuro district.
-
C.
Itabashi Station
Itabashi Station is a railway station in Tokyo, Japan, known as a stop on major commuter lines connecting central Tokyo with its northern suburbs.
-
D.
Higashi-ginza Station
Higashi-ginza Station is a Tokyo subway station serving the Higashi-Ginza district, providing access to major commercial and entertainment areas including the Ginza shopping district.
-
E.
Nagatachō Station
Nagatachō Station is a major Tokyo Metro subway station in central Tokyo that serves the government district near the National Diet and numerous ministry buildings.
- 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_69d6aa98650481908609c7c56bfa7902 |
completed | April 8, 2026, 7:20 p.m. |
| NER | Named-entity recognition | batch_69d7986c0df88190b29d71db5538450a |
completed | April 9, 2026, 12:15 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69e3aa1c2d9c8190959e28ccef4e0f6d |
completed | April 18, 2026, 3:58 p.m. |
Created at: April 8, 2026, 9:26 p.m.