Triple

T12205662
Position Surface form Disambiguated ID Type / Status
Subject NRU reactor E290829 entity
Predicate operator P179 FINISHED
Object Atomic Energy of Canada Limited E215602 NE FINISHED

Named-entity recognition

Before disambiguation, gpt-5-mini classified whether the object phrase is a named entity — the step behind the object's NE type shown above.

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: Atomic Energy of Canada Limited | Statement: [NRU reactor, operator, Atomic Energy of Canada Limited]

Disambiguation candidates (1 decision)

The exact options the model was shown at each disambiguation step, with the option it chose highlighted — the evidence behind this triple's disambiguated ids.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Atomic Energy of Canada Limited
Context triple: [NRU reactor, operator, Atomic Energy of Canada Limited]
  • A. Atomic Energy of Canada Limited chosen
    Atomic Energy of Canada Limited is a Canadian federal Crown corporation responsible for nuclear energy research, development, and technology, including the design of CANDU reactors.
  • B. Canadian Nuclear Safety Commission
    The Canadian Nuclear Safety Commission is Canada’s federal regulator responsible for overseeing the safe use of nuclear energy and materials to protect health, safety, security, and the environment.
  • C. Power Corporation of Canada
    Power Corporation of Canada is a major Canadian diversified international management and holding company with significant interests in financial services, asset management, and renewable energy.
  • D. Chalk River Laboratories
    Chalk River Laboratories is a major Canadian nuclear research facility in Ontario known for pioneering work in nuclear reactor technology and isotope production.
  • E. Ontario Power Generation
    Ontario Power Generation is a large, government-owned electricity producer in Ontario, Canada, primarily known for operating nuclear, hydroelectric, and other power generating stations across the province.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (3 batches)

Stage Batch ID Job type Status
creating batch_69d6ab65923081909acfc61b7a612233 elicitation completed
NER batch_69d91c7c9084819085e7d2f9038f409f ner completed
NED1 batch_69f61e5666f48190a28eed761e7b9210 ned_source_triple completed
Created at: April 8, 2026, 9:51 p.m.