Triple

T12205786
Position Surface form Disambiguated ID Type / Status
Subject NRX reactor accident of 1952 E290831 entity
Predicate impactOnReactor P103390 FINISHED
Object NRX reactor was later repaired and returned to service E290828 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: NRX reactor was later repaired and returned to service | Statement: [NRX reactor accident of 1952, impactOnReactor, NRX reactor was later repaired and returned to service]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: NRX reactor was later repaired and returned to service
Context triple: [NRX reactor accident of 1952, impactOnReactor, NRX reactor was later repaired and returned to service]
  • A. NRX reactor chosen
    The NRX reactor was an early Canadian research nuclear reactor at Chalk River that played a key role in the development of nuclear science and technology.
  • B. NRU reactor
    The NRU reactor was a Canadian research nuclear reactor at Chalk River Laboratories known for producing medical isotopes and supporting materials testing and reactor physics research.
  • C. NRX reactor accident of 1952
    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.
  • D. SRS L Reactor
    SRS L Reactor is a former production nuclear reactor at the Savannah River Site in South Carolina that was used primarily for generating materials for nuclear weapons.
  • E. S2W nuclear reactor
    The S2W nuclear reactor was an early U.S. Navy pressurized water reactor design that powered the world’s first operational nuclear-powered submarine, USS Nautilus.
  • 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_69d93ed7251c8190b94d7cd75ad49b9c completed April 10, 2026, 6:17 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.