Triple
T15109497
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Seibu Ikebukuro |
E360873
|
entity |
| Predicate | accessibleFrom |
P1985
|
FINISHED |
| Object | Tokyo Metro Marunouchi Line at Ikebukuro Station |
E627469
|
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 Marunouchi Line at Ikebukuro Station | Statement: [Seibu Ikebukuro, accessibleFrom, Tokyo Metro Marunouchi Line at Ikebukuro Station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Tokyo Metro Marunouchi Line at Ikebukuro Station Context triple: [Seibu Ikebukuro, accessibleFrom, Tokyo Metro Marunouchi Line at Ikebukuro Station]
-
A.
Tokyo Metro Hibiya Line at Roppongi Station
Tokyo Metro Hibiya Line at Roppongi Station is a major Tokyo subway line stop in the Roppongi district that serves as an important transfer point and access hub for the area’s nightlife, business, and cultural attractions.
-
B.
Tokyo Metro Marunouchi Line (at Ikebukuro Station)
chosen
The Tokyo Metro Marunouchi Line at Ikebukuro Station is a major Tokyo subway line stop that serves as a key transfer point between central Tokyo’s metro network and multiple suburban and urban rail lines.
-
C.
Tokyo Metro Ginza Line at Kanda Station
Tokyo Metro Ginza Line at Kanda Station is the Ginza Line subway stop in Tokyo’s Kanda district, providing underground metro service and transfers to JR railway lines.
-
D.
Tokyo Metro Hanzomon Line at Kudanshita Station
Tokyo Metro Hanzomon Line at Kudanshita Station is an underground Tokyo Metro subway line stop in central Tokyo that serves as a key transfer point and access route to nearby areas such as the Imperial Palace and Yasukuni Shrine.
-
E.
Tokyo Metro Yurakucho Line (at Ikebukuro Station)
The Tokyo Metro Yurakucho Line at Ikebukuro Station is a major Tokyo subway line stop that serves as a key transfer point between central Tokyo’s subway network and suburban rail services such as the Tobu Tojo Line.
- 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_69d85a0491ec8190830960be8fafb994 |
completed | April 10, 2026, 2:01 a.m. |
| NER | Named-entity recognition | batch_69e0058c04f481909deeac0271d961b6 |
completed | April 15, 2026, 9:39 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69feb7eb139c8190b76393e4a8be576b |
completed | May 9, 2026, 4:28 a.m. |
Created at: April 10, 2026, 3:05 a.m.