Triple
T19604410
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Kashiwazaki-Kariwa Nuclear Power Plant |
E470565
|
entity |
| Predicate | gridOperator |
P16162
|
FINISHED |
| Object | TEPCO Power Grid |
—
|
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: TEPCO Power Grid | Statement: [Kashiwazaki-Kariwa Nuclear Power Plant, gridOperator, TEPCO Power Grid]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: TEPCO Power Grid Context triple: [Kashiwazaki-Kariwa Nuclear Power Plant, gridOperator, TEPCO Power Grid]
-
A.
Tokyo Electric Power Company
chosen
Tokyo Electric Power Company is Japan’s largest electric utility, internationally known for operating the Fukushima Daiichi nuclear plant involved in the 2011 nuclear disaster.
-
B.
Chubu Electric Power
Chubu Electric Power is a major Japanese electric utility company that supplies power primarily to the Chūbu region, including the Chūkyō metropolitan area.
-
C.
Tohoku Electric Power (Yurtec)
Tohoku Electric Power (Yurtec) is a major Japanese electric utility company serving the Tohoku region and acting as the naming sponsor for Yurtec Stadium Sendai.
-
D.
Power Reactor Development Company
Power Reactor Development Company was a consortium formed by U.S. utilities and industrial firms to build and operate the experimental Fermi 1 fast breeder nuclear reactor near Detroit in the mid-20th century.
-
E.
Tokyo Gas and Electric Industrial Company
Tokyo Gas and Electric Industrial Company was a Japanese industrial firm active in the early 20th century that played a foundational role in the country’s automotive industry, including establishing the company that became Hino Motors.
- 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_69d8e510024481908415c0d616fa6186 |
completed | April 10, 2026, 11:54 a.m. |
| NER | Named-entity recognition | batch_69e64081af6c8190868b73b07c874cd5 |
completed | April 20, 2026, 3:04 p.m. |
Created at: April 10, 2026, 1:43 p.m.