Triple
T1453286
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Osaka Metro Sennichimae Line |
E31340
|
entity |
| Predicate | formerOperator |
P179
|
FINISHED |
| Object | Osaka Municipal Transportation Bureau |
E13707
|
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: Osaka Municipal Transportation Bureau | Statement: [Osaka Metro Sennichimae Line, formerOperator, Osaka Municipal Transportation Bureau]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Osaka Municipal Transportation Bureau Context triple: [Osaka Metro Sennichimae Line, formerOperator, Osaka Municipal Transportation Bureau]
-
A.
Teito Rapid Transit Authority
Teito Rapid Transit Authority was the former public operator of several Tokyo subway lines before its privatization and reorganization as Tokyo Metro.
-
B.
Hanshin Electric Railway Co., Ltd.
Hanshin Electric Railway Co., Ltd. is a Japanese private railway company in the Kansai region, best known in popular culture as the corporate parent of the professional baseball team Hanshin Tigers.
-
C.
Osaka Metro
chosen
Osaka Metro is the rapid transit network serving Japan’s city of Osaka and its surrounding urban area.
-
D.
Nankai Electric Railway
Nankai Electric Railway is a major private railway company in Japan’s Kansai region, operating key commuter and interurban lines connecting Osaka with Wakayama and Kansai International Airport.
-
E.
Hankyu Railway
Hankyu Railway is a major private railway operator in the Kansai region of Japan, known for its extensive commuter network linking Osaka with Kyoto and Kobe.
- 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_69a499171a28819085b993a3ac78e363 |
completed | March 1, 2026, 7:52 p.m. |
| NER | Named-entity recognition | batch_69a4c57e82d48190a30a4512f39f5de0 |
completed | March 1, 2026, 11:02 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ad0e71ffd481909dfd0f77201dc17c |
completed | March 8, 2026, 5:51 a.m. |
Created at: March 1, 2026, 8 p.m.