Triple

T5084930
Position Surface form Disambiguated ID Type / Status
Subject Warren A. Bechtel E114612 entity
Predicate child P120 FINISHED
Object Stephen D. Bechtel Sr. E20784 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: Stephen D. Bechtel Sr. | Statement: [Warren A. Bechtel, child, Stephen D. Bechtel Sr.]

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: Stephen D. Bechtel Sr.
Context triple: [Warren A. Bechtel, child, Stephen D. Bechtel Sr.]
  • A. Stephen D. Bechtel Sr. chosen
    Stephen D. Bechtel Sr. was an American engineer and businessman who led and expanded the Bechtel Corporation into one of the world’s largest engineering and construction firms.
  • B. Stephen D. Bechtel Jr.
    Stephen D. Bechtel Jr. was an American engineer and business executive who led the Bechtel Corporation into becoming one of the world’s largest engineering and construction firms and was widely recognized for his contributions to industry and public service.
  • C. Warren A. Bechtel
    Warren A. Bechtel was an American construction pioneer who founded Bechtel Corporation, which grew into one of the world’s largest engineering and construction companies.
  • D. Riley P. Bechtel
    Riley P. Bechtel is an American billionaire businessman who served as chairman and CEO of Bechtel Corporation, one of the world’s largest engineering and construction firms.
  • E. Fred C. Koch
    Fred C. Koch was an American chemical engineer and entrepreneur who co-founded the oil refining company that became Koch Industries.
  • 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_69bd443e941881908eb4e8c685b6f656 elicitation completed
NER batch_69bd75192d188190a7631bce5faf7de3 ner completed
NED1 batch_69bec360a5848190a243da780b53559c ned_source_triple completed
Created at: March 20, 2026, 1:40 p.m.