Triple
T21323174
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Meitetsu Mikawa Line |
E525675
|
entity |
| Predicate | railwayCompany |
P5620
|
FINISHED |
| Object | Nagoya Railroad |
—
|
NE NERFINISHED |
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: Nagoya Railroad | Statement: [Meitetsu Mikawa Line, railwayCompany, Nagoya Railroad]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Nagoya Railroad Context triple: [Meitetsu Mikawa Line, railwayCompany, Nagoya Railroad]
-
A.
Nagoya Railroad (Meitetsu)
chosen
Nagoya Railroad (Meitetsu) is a major private railway company in Japan that operates an extensive network of commuter and intercity rail lines centered on Nagoya and the surrounding Chūkyō metropolitan area.
-
B.
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.
-
C.
Toyohashi Railroad
Toyohashi Railroad is a Japanese public transportation company that operates railway and tram lines primarily in Toyohashi, Aichi Prefecture.
-
D.
West Japan Railway Company
West Japan Railway Company is one of Japan’s major regional railway operators, managing extensive rail networks across western Honshu including the Kansai area.
-
E.
Nishi-Nippon Railroad
Nishi-Nippon Railroad is a major Japanese private railway and transportation company based in Fukuoka, operating rail lines, buses, and related services in the Kyushu region.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (2 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_69e0b51ad810819098c12392c8e55f6c |
completed | April 16, 2026, 10:08 a.m. |
| NER | Named-entity recognition | batch_69e77ed572548190bd71ef690fc7befe |
completed | April 21, 2026, 1:42 p.m. |
Created at: April 16, 2026, 4:40 p.m.