Triple

T7322089
Position Surface form Disambiguated ID Type / Status
Subject Maywood station E168574 entity
Predicate category P87 FINISHED
Object Union Pacific West Line stations E199279 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: Union Pacific West Line stations | Statement: [Maywood station, category, Union Pacific West Line stations]

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: Union Pacific West Line stations
Context triple: [Maywood station, category, Union Pacific West Line stations]
  • A. Union Pacific mainline routes
    Union Pacific mainline routes are the railroad’s primary high-capacity freight corridors that carry long-distance trains across its network, including through major facilities like Bailey Yard.
  • B. Union Pacific West Line chosen
    The Union Pacific West Line is a commuter rail route in the Chicago metropolitan area that runs between downtown Chicago and western suburbs, providing daily passenger service as part of the Metra system.
  • C. Union Pacific Valley Subdivision
    The Union Pacific Valley Subdivision is a railroad line operated by Union Pacific that serves as a key freight corridor within its regional rail network.
  • D. Union Pacific Yard
    Union Pacific Yard is a rail yard facility operated by the Union Pacific Railroad for organizing, storing, and dispatching freight trains and rolling stock.
  • E. Union Pacific Geneva Subdivision
    The Union Pacific Geneva Subdivision is a major freight rail line in the Chicago area used by Union Pacific Railroad for both mainline operations and commuter rail services.
  • 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_69c68a5251508190ad68df4151cfeb04 elicitation completed
NER batch_69c6f041f4a88190b85cff1ee5f9a6d0 ner completed
NED1 batch_69c7ef0609dc81909f298d3963fc88af ned_source_triple completed
Created at: March 27, 2026, 3:03 p.m.