Triple

T8178569
Position Surface form Disambiguated ID Type / Status
Subject James Edward Keeler E191001 entity
Predicate employer P7 FINISHED
Object Allegheny Observatory E192586 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: Allegheny Observatory | Statement: [James Edward Keeler, employer, Allegheny Observatory]

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: Allegheny Observatory
Context triple: [James Edward Keeler, employer, Allegheny Observatory]
  • A. Allegheny Observatory chosen
    Allegheny Observatory is a historic astronomical research facility in Pittsburgh, Pennsylvania, known for its significant contributions to observational astronomy and astrophysics.
  • B. Cincinnati Observatory
    The Cincinnati Observatory is a historic astronomical observatory in Cincinnati, Ohio, often called the "Birthplace of American Astronomy" and known for its 19th-century telescopes and public education programs.
  • C. Barnard Observatory
    Barnard Observatory is a historic astronomical observatory at the University of Mississippi, named for astronomer Edward Emerson Barnard and known for its 19th-century role in American observational astronomy.
  • D. Kirkwood Observatory
    Kirkwood Observatory is an astronomical observatory at Indiana University in Bloomington, Indiana, known for its historic telescope and role in teaching and public outreach in astronomy.
  • E. Dearborn Observatory
    Dearborn Observatory is a historic astronomical observatory at Northwestern University in Evanston, Illinois, known for its large refracting telescope and long-standing role in American astronomical research.
  • 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_69ca82c4538081909404325aa5639483 elicitation completed
NER batch_69cb4abb66bc81908d758c7af2e23ac6 ner completed
NED1 batch_69cced64c9588190b8db6452c364347d ned_source_triple completed
Created at: March 30, 2026, 5:40 p.m.