Triple

T12205757
Position Surface form Disambiguated ID Type / Status
Subject NRX reactor accident of 1952 E290831 entity
Predicate alsoKnownAs P39 FINISHED
Object 1952 NRX reactor accident E290831 NE FINISHED

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: 1952 NRX reactor accident | Statement: [NRX reactor accident of 1952, alsoKnownAs, 1952 NRX reactor accident]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: 1952 NRX reactor accident
Context triple: [NRX reactor accident of 1952, alsoKnownAs, 1952 NRX reactor accident]
  • A. NRX reactor accident of 1952 chosen
    The NRX reactor accident of 1952 was a major nuclear reactor incident in Canada involving a partial meltdown and significant radioactive release, making it one of the earliest serious accidents in nuclear power history.
  • B. Chernobyl disaster
    The Chernobyl disaster was a catastrophic 1986 nuclear power plant accident in Soviet-era Ukraine that released massive radioactive contamination across Europe and became one of the worst nuclear disasters in history.
  • C. Windscale fire
    The Windscale fire was a major 1957 nuclear reactor accident in the UK, considered one of the worst nuclear disasters in British history and a key event in the development of nuclear safety regulations.
  • D. Three Mile Island
    Three Mile Island is a small, wooded island located on Lake Winnipesaukee in New Hampshire, known for its recreational camps and scenic natural setting.
  • E. Chernobyl Nuclear Power Plant
    The Chernobyl Nuclear Power Plant was a Soviet-era nuclear power station in northern Ukraine, infamous for the catastrophic 1986 reactor explosion that caused one of the worst nuclear disasters in history.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (3 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_69d6ab65923081909acfc61b7a612233 completed April 8, 2026, 7:24 p.m.
NER Named-entity recognition batch_69d91c7c9084819085e7d2f9038f409f completed April 10, 2026, 3:51 p.m.
NED1 Entity disambiguation (via context triple) batch_69f60a9ae3d48190a220ccd37ce8d3e7 completed May 2, 2026, 2:30 p.m.
Created at: April 8, 2026, 9:51 p.m.