Triple
T2882384
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Nankai Main Line |
E59425
|
entity |
| Predicate | historicalOperator |
P2834
|
FINISHED |
| Object | Nankai Railway |
E32139
|
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: Nankai Railway | Statement: [Nankai Main Line, historicalOperator, Nankai Railway]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Nankai Railway Context triple: [Nankai Main Line, historicalOperator, Nankai Railway]
-
A.
Nankai Electric Railway
chosen
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.
-
B.
Hankai Tramway Co.
Hankai Tramway Co. is a Japanese private railway company that operates historic streetcar and tram services in the Osaka and Sakai areas.
-
C.
Kinki Sharyo
Kinki Sharyo is a Japanese manufacturer specializing in the design and production of railway vehicles, including metro and light rail trains used in systems worldwide.
-
D.
Odakyu Electric Railway
Odakyu Electric Railway is a major private railway company in Japan that operates commuter and limited express train services connecting central Tokyo with surrounding suburban and regional areas.
-
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_69ab4ac739188190a112f42a5a69c951 |
completed | March 6, 2026, 9:44 p.m. |
| NER | Named-entity recognition | batch_69abe02aa5948190a2e0bd9168232bd5 |
completed | March 7, 2026, 8:22 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69b5d02c25408190ba366a6a5e422046 |
completed | March 14, 2026, 9:16 p.m. |
Created at: March 6, 2026, 10:03 p.m.