Triple

T22730732
Position Surface form Disambiguated ID Type / Status
Subject Chicago–San Diego E562126 entity
Predicate operator P179 FINISHED
Object Atchison, Topeka and 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: Atchison, Topeka and Santa Fe Railway | Statement: [Chicago–San Diego, operator, Atchison, Topeka and 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: Atchison, Topeka and Santa Fe Railway
Context triple: [Chicago–San Diego, operator, Atchison, Topeka and 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. Missouri Pacific Railroad
    Missouri Pacific Railroad was a major American Class I railroad that operated across the Midwestern and Southwestern United States, playing a key role in regional freight and passenger transportation before its merger into the Union Pacific system.
  • C. Texas and Pacific Railway
    The Texas and Pacific Railway was a major 19th- and 20th-century American railroad that operated across Texas and into the southwestern United States, playing a key role in regional transportation and economic development.
  • D. Kansas Pacific Railway
    The Kansas Pacific Railway was a 19th-century American railroad that formed part of the first transcontinental rail network, linking Kansas to the western frontier and facilitating regional settlement and commerce.
  • E. St. Louis–San Francisco Railway
    The St. Louis–San Francisco Railway, commonly known as the Frisco, was a major American railroad that operated in the central and south-central United States from the late 19th to the mid-20th century.
  • 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.