Triple
T13265613
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Mitaka |
E315914
|
entity |
| Predicate | servedByRailLine |
P1293
|
FINISHED |
| Object | Chūō-Sōbu Line |
—
|
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: Chūō-Sōbu Line | Statement: [Mitaka, servedByRailLine, Chūō-Sōbu Line]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Chūō-Sōbu Line Context triple: [Mitaka, servedByRailLine, Chūō-Sōbu Line]
-
A.
Chūō-Sōbu Line
chosen
The Chūō-Sōbu Line is a busy commuter rail line in Tokyo and Chiba, Japan, running local services that connect central Tokyo with its western suburbs and eastern neighboring prefecture.
-
B.
Chūō Main Line
The Chūō Main Line is a major Japanese railway line operated by JR that runs through central Tokyo and connects the capital with inland regions such as Nagano via key urban hubs.
-
C.
Tōzai Line
The Tōzai Line is an east–west rapid transit line forming part of the Kyoto Municipal Subway system in Kyoto, Japan.
-
D.
Nippō Main Line
The Nippō Main Line is a major railway line in Kyushu, Japan, operated by JR Kyushu and running along the eastern coast to connect key cities including Beppu, Oita, and Miyazaki.
-
E.
Yokohama Line
The Yokohama Line is a commuter rail line in the Greater Tokyo area of Japan operated by JR East, connecting Hachiōji and Higashi-Kanagawa and serving key suburban and urban districts around Yokohama.
- 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_69d806b1d9ac8190852c5571d5bd5f0f |
completed | April 9, 2026, 8:06 p.m. |
| NER | Named-entity recognition | batch_69d9901e44bc8190966f87ae219d6bf4 |
completed | April 11, 2026, 12:04 a.m. |
Created at: April 9, 2026, 9:25 p.m.