Triple
T21800386
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | JR East Niitsu Rolling Stock Plant |
E538222
|
entity |
| Predicate | railwayRegionServed |
P15232
|
FINISHED |
| Object | East Japan |
—
|
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: East Japan | Statement: [JR East Niitsu Rolling Stock Plant, railwayRegionServed, East Japan]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: East Japan Context triple: [JR East Niitsu Rolling Stock Plant, railwayRegionServed, East Japan]
-
A.
East Japan
chosen
East Japan refers to the eastern region of Japan, commonly associated with the service area of East Japan Railway Company (JR East) and encompassing major areas such as the Kanto and Tohoku regions.
-
B.
Northern Japan
Northern Japan is the geographically and climatically cooler northern region of Japan, encompassing areas such as Hokkaido and known for its snowy winters, hot springs, and rugged natural landscapes.
-
C.
northern Honshū
Northern Honshū is the northern region of Japan’s largest island, known for its rugged landscapes, cold climate, and historical role as a frontier area distinct from the political centers to the south.
-
D.
Honshu–Shikoku area
The Honshu–Shikoku area is a key region of Japan encompassing the strait and surrounding zones between the main islands of Honshu and Shikoku, linked by major bridge and transportation networks.
-
E.
Kantō region
The Kantō region is a major geographical and economic area of eastern Honshu, Japan, encompassing Tokyo and several surrounding prefectures and serving as the country’s political and population center.
- 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_69e0c4733f4081909a86622e7e6d15d2 |
completed | April 16, 2026, 11:13 a.m. |
| NER | Named-entity recognition | batch_69f077fede848190b8fe07941d6573d9 |
completed | April 28, 2026, 9:03 a.m. |
Created at: April 16, 2026, 6:53 p.m.