Triple
T9296235
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Fukushima Daiichi Nuclear Power Plant |
E223644
|
entity |
| Predicate | adjacentFacility |
P5648
|
FINISHED |
| Object |
Fukushima Daini Nuclear Power Plant
Fukushima Daini Nuclear Power Plant is a Japanese coastal nuclear power station in Fukushima Prefecture that experienced a significant but more contained impact from the 2011 Tōhoku earthquake and tsunami than its neighboring Daiichi plant.
|
E790334
|
NE FINISHED |
How this triple was built (4 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: Fukushima Daini Nuclear Power Plant | Statement: [Fukushima Daiichi Nuclear Power Plant, adjacentFacility, Fukushima Daini Nuclear Power Plant]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Fukushima Daini Nuclear Power Plant Context triple: [Fukushima Daiichi Nuclear Power Plant, adjacentFacility, Fukushima Daini Nuclear Power Plant]
-
A.
Fukushima Daiichi Unit 2
Fukushima Daiichi Unit 2 is one of the damaged reactors at Japan’s Fukushima Daiichi Nuclear Power Plant that suffered a core meltdown and severe structural failures following the 2011 earthquake and tsunami.
-
B.
Kashiwazaki-Kariwa Nuclear Power Plant
The Kashiwazaki-Kariwa Nuclear Power Plant is one of the world’s largest nuclear power stations, located in Niigata Prefecture, Japan, and operated by Tokyo Electric Power Company (TEPCO).
-
C.
Fukushima Daiichi Nuclear Power Plant
Fukushima Daiichi Nuclear Power Plant is a coastal Japanese nuclear power station in Ōkuma, Fukushima Prefecture, widely known as the site of the 2011 reactor meltdowns following a massive earthquake and tsunami.
-
D.
Fukushima Daiichi Unit 3
Fukushima Daiichi Unit 3 is one of the damaged reactors at Japan’s Fukushima Daiichi Nuclear Power Plant, known for suffering a hydrogen explosion and core meltdown during the 2011 nuclear disaster.
-
E.
Fukushima Daiichi Unit 4
Fukushima Daiichi Unit 4 is one of the reactors at Japan’s Fukushima Daiichi Nuclear Power Plant that suffered severe damage and a spent fuel pool crisis following the 2011 earthquake and tsunami.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg
Description generation
gpt-5.1
Instruction
Generate a one-sentence description of the target entity. You are given a context triple in the form (subject, predicate, object), where the object is the target entity. # Instructions Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. Avoid repeating the information from the triple, unless really essential. # Response Format Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: Fukushima Daini Nuclear Power Plant Triple: [Fukushima Daiichi Nuclear Power Plant, adjacentFacility, Fukushima Daini Nuclear Power Plant]
Generated description
Fukushima Daini Nuclear Power Plant is a Japanese coastal nuclear power station in Fukushima Prefecture that experienced a significant but more contained impact from the 2011 Tōhoku earthquake and tsunami than its neighboring Daiichi plant.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Fukushima Daini Nuclear Power Plant Target entity description: Fukushima Daini Nuclear Power Plant is a Japanese coastal nuclear power station in Fukushima Prefecture that experienced a significant but more contained impact from the 2011 Tōhoku earthquake and tsunami than its neighboring Daiichi plant.
-
A.
Fukushima Daiichi Unit 2
Fukushima Daiichi Unit 2 is one of the damaged reactors at Japan’s Fukushima Daiichi Nuclear Power Plant that suffered a core meltdown and severe structural failures following the 2011 earthquake and tsunami.
-
B.
Kashiwazaki-Kariwa Nuclear Power Plant
The Kashiwazaki-Kariwa Nuclear Power Plant is one of the world’s largest nuclear power stations, located in Niigata Prefecture, Japan, and operated by Tokyo Electric Power Company (TEPCO).
-
C.
Fukushima Daiichi Nuclear Power Plant
Fukushima Daiichi Nuclear Power Plant is a coastal Japanese nuclear power station in Ōkuma, Fukushima Prefecture, widely known as the site of the 2011 reactor meltdowns following a massive earthquake and tsunami.
-
D.
Fukushima Daiichi Unit 3
Fukushima Daiichi Unit 3 is one of the damaged reactors at Japan’s Fukushima Daiichi Nuclear Power Plant, known for suffering a hydrogen explosion and core meltdown during the 2011 nuclear disaster.
-
E.
Fukushima Daiichi Unit 4
Fukushima Daiichi Unit 4 is one of the reactors at Japan’s Fukushima Daiichi Nuclear Power Plant that suffered severe damage and a spent fuel pool crisis following the 2011 earthquake and tsunami.
- F. None of above. chosen
Provenance (5 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_69ca8423edb08190bc0c91287a484768 |
completed | March 30, 2026, 2:09 p.m. |
| NER | Named-entity recognition | batch_69cd089c9c588190967404c9eb938dfb |
completed | April 1, 2026, 11:59 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69d0b248f99c8190a617b1d676799c75 |
completed | April 4, 2026, 6:40 a.m. |
| NEDg | Description generation | batch_69d0b3f4bb6c819082d3f801ad88304f |
completed | April 4, 2026, 6:47 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69d0b4b8131c8190b2aa8be56925b7bc |
completed | April 4, 2026, 6:50 a.m. |
Created at: March 30, 2026, 7:36 p.m.