Triple

T9550559
Position Surface form Disambiguated ID Type / Status
Subject Glen Ellyn station E230409 entity
Predicate partOfCorridor P840 FINISHED
Object Union Pacific West commuter corridor 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 commuter corridor | Statement: [Glen Ellyn station, partOfCorridor, Union Pacific West commuter corridor]

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 commuter corridor
Context triple: [Glen Ellyn station, partOfCorridor, Union Pacific West commuter corridor]
  • A. Union Pacific Railroad line
    The Union Pacific Railroad line is a major freight rail route in the western United States operated by Union Pacific Railroad, one of the largest railroad networks in North America.
  • 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–Central Pacific rail connection
    The Union Pacific–Central Pacific rail connection was the historic junction point in Utah where the first U.S. transcontinental railroad was completed in 1869, linking eastern and western rail networks.
  • D. 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.
  • E. Union Pacific North Line
    The Union Pacific North Line is a Metra commuter rail line in the Chicago metropolitan area that runs north from downtown Chicago through suburbs along Lake Michigan into Kenosha, Wisconsin.
  • 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_69ca847d3be8819099c9dad2a7e786f1 elicitation completed
NER batch_69cd9906bc90819086f105c453e63c83 ner completed
NED1 batch_69d14c85b9208190acf98fa985b0f01f ned_source_triple completed
Created at: March 30, 2026, 8:02 p.m.