Triple

T22730752
Position Surface form Disambiguated ID Type / Status
Subject Chicago–San Diego E562126 entity
Predicate usesInfrastructure P6820 FINISHED
Object Atchison, Topeka and Santa Fe Railway main line — 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 main line | Statement: [Chicago–San Diego, usesInfrastructure, Atchison, Topeka and Santa Fe Railway main line]

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 main line
Context triple: [Chicago–San Diego, usesInfrastructure, Atchison, Topeka and Santa Fe Railway main line]
  • A. Burlington Northern Santa Fe Railway main line
    The Burlington Northern Santa Fe Railway main line is a major transcontinental freight rail corridor in the United States that carries heavy rail traffic across key western routes, including the desert region near Needles, California.
  • B. Denver and Rio Grande Western Railroad main line
    The Denver and Rio Grande Western Railroad main line was a major transcontinental rail route across the Rocky Mountains, known for its steep grades, dramatic scenery, and vital role in connecting Colorado and Utah to the broader U.S. rail network.
  • C. Santa Fe main line via Kansas chosen
    The Santa Fe main line via Kansas is a principal railway corridor of the Atchison, Topeka and Santa Fe Railway that carried premier passenger trains such as the Super Chief across the central United States.
  • D. Missouri–Kansas–Texas Railroad
    The Missouri–Kansas–Texas Railroad, commonly known as the MKT or "the Katy," was a major American railroad that served the south-central United States, particularly linking Missouri, Kansas, Oklahoma, and Texas.
  • E. Atchison, Topeka and Santa Fe Railway
    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.
  • 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.