Triple

T22722082
Position Surface form Disambiguated ID Type / Status
Subject Firefly (St. Louis–San Francisco Railway train) E561887 entity
Predicate operatedBy P86 FINISHED
Object Frisco 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: Frisco Railway | Statement: [Firefly (St. Louis–San Francisco Railway train), operatedBy, Frisco Railway]

Disambiguation candidates (2 decisions)

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: Frisco Railway
Context triple: [Firefly (St. Louis–San Francisco Railway train), operatedBy, Frisco Railway]
  • A. Fort Worth and Denver Railway
    The Fort Worth and Denver Railway was a historic Texas railroad that played a key role in connecting North Texas cities with the broader regional and national rail network.
  • B. Houston and Great Northern Railroad
    The Houston and Great Northern Railroad was a 19th-century Texas railway company that became part of the International–Great Northern Railroad through consolidation.
  • 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. 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.
  • E. St. Louis, Brownsville and Mexico Railway
    The St. Louis, Brownsville and Mexico Railway was an early 20th-century railroad that helped open and develop South Texas and the Rio Grande Valley by connecting the region to national rail networks.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Frisco Railway
Target entity description: Frisco Railway, formally known as the St. Louis–San Francisco Railway, was a major American railroad that operated an extensive network across the Midwest and South Central United States from the late 19th to the mid-20th century.
  • A. Fort Worth and Denver Railway
    The Fort Worth and Denver Railway was a historic Texas railroad that played a key role in connecting North Texas cities with the broader regional and national rail network.
  • B. Houston and Great Northern Railroad
    The Houston and Great Northern Railroad was a 19th-century Texas railway company that became part of the International–Great Northern Railroad through consolidation.
  • 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. 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.
  • E. St. Louis, Brownsville and Mexico Railway
    The St. Louis, Brownsville and Mexico Railway was an early 20th-century railroad that helped open and develop South Texas and the Rio Grande Valley by connecting the region to national rail networks.
  • F. None of above. chosen

Provenance (2 batches)

Stage Batch ID Job type Status
creating batch_69e2454fc984819088213b58ee87a002 elicitation completed
NER batch_69f17926ae0c8190af8493cab6b15261 ner completed
Created at: April 17, 2026, 3:20 p.m.