Triple

T22730748
Position Surface form Disambiguated ID Type / Status
Subject Chicago–San Diego E562126 entity
Predicate operator P179 FINISHED
Object Santa Fe Railway — NE NERFINISHED

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: Santa Fe Railway | Statement: [Chicago–San Diego, operator, Santa Fe Railway]

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: Santa Fe Railway
Context triple: [Chicago–San Diego, operator, Santa Fe Railway]
  • A. Atchison, Topeka and Santa Fe Railway chosen
    The Atchison, Topeka and Santa Fe Railway was a major American railroad that became one of the largest and most influential rail systems in the United States, central to the development of the Southwest.
  • B. Southern Pacific Railroad
    Southern Pacific Railroad was a major American railroad company that operated extensive rail networks across the western and southwestern United States from the 19th to the late 20th century.
  • C. Santa Fe Pacific Corporation
    Santa Fe Pacific Corporation was a diversified American holding company best known for owning and operating the Atchison, Topeka and Santa Fe Railway and related natural resource businesses in the late 20th century.
  • D. Union Pacific Railroad
    Union Pacific Railroad is one of the largest freight rail networks in the United States, operating an extensive system that spans the western two-thirds of the country.
  • E. Denver and Rio Grande Western Railroad
    The Denver and Rio Grande Western Railroad was a historic U.S. railroad known for its scenic mountain routes through Colorado and Utah and its role in transcontinental passenger and freight service.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (2 batches)

Stage Batch ID Job type Status
creating batch_69e24550859c81908727d91efc3a81b4 elicitation completed
NER batch_69f1792cb9cc8190a7c45032427bca1a ner completed
Created at: April 17, 2026, 3:21 p.m.