Triple

T12775637
Position Surface form Disambiguated ID Type / Status
Subject Charles Stillman E305362 entity
Predicate affiliation P10 FINISHED
Object American Federation of Teachers E38450 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: American Federation of Teachers | Statement: [Charles Stillman, affiliation, American Federation of Teachers]

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: American Federation of Teachers
Context triple: [Charles Stillman, affiliation, American Federation of Teachers]
  • A. American Federation of Teachers chosen
    The American Federation of Teachers is a major U.S. labor union representing educators and other school-related professionals, advocating for workers’ rights, public education, and social justice.
  • B. National Education Association
    The National Education Association is the largest professional organization and labor union representing public school teachers and other education professionals in the United States.
  • C. AASA
    AASA is the senior civilian official who serves as the principal administrative advisor and executive manager for the U.S. Secretary of the Army.
  • D. Ontario Teachers’ Federation
    The Ontario Teachers’ Federation is a professional organization representing public school teachers in Ontario, Canada, advocating for their interests in areas such as working conditions, education policy, and pension governance.
  • E. AFL–CIO
    The AFL–CIO is the largest federation of labor unions in the United States, formed by the merger of major labor organizations and representing millions of workers across diverse 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_69d7bdf2b43c819098ae5aa68e61ea58 elicitation completed
NER batch_69d96df6b3c88190b0bbe70de8ddcbf3 ner completed
NED1 batch_69f684fee60c81909245d4d70c9338c0 ned_source_triple completed
Created at: April 9, 2026, 5:29 p.m.