Triple

T20021464
Position Surface form Disambiguated ID Type / Status
Subject Flossmoor, Illinois E494868 entity
Predicate hasPublicTransitConnection P3791 FINISHED
Object Metra commuter rail to downtown Chicago — 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: Metra commuter rail to downtown Chicago | Statement: [Flossmoor, Illinois, hasPublicTransitConnection, Metra commuter rail to downtown Chicago]

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: Metra commuter rail to downtown Chicago
Context triple: [Flossmoor, Illinois, hasPublicTransitConnection, Metra commuter rail to downtown Chicago]
  • A. Metra commuter rail services at Chicago Union Station
    Metra commuter rail services at Chicago Union Station are a network of regional passenger trains that connect downtown Chicago with its surrounding suburbs via multiple lines terminating or passing through this major terminal.
  • B. Chicago metropolitan area commuter rail network
    The Chicago metropolitan area commuter rail network is a regional passenger rail system serving Chicago and its surrounding suburbs, primarily operated by Metra.
  • C. Metra Rock Island District line
    The Metra Rock Island District line is a commuter rail route in the Chicago metropolitan area that connects downtown Chicago with various southwest suburbs, including Tinley Park.
  • D. Metra chosen
    Metra is the commuter rail system serving the Chicago metropolitan area, operating extensive routes that connect the city with its surrounding suburbs.
  • E. Orange Line Metro Train
    Orange Line Metro Train is a rapid transit line in Lahore, Pakistan, forming part of the city’s metro system and providing high-capacity urban rail service.
  • 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_69da626bfd288190aa5d65098b6433ae elicitation completed
NER batch_69e6623fe1988190a1c09d392d866dc8 ner completed
Created at: April 11, 2026, 3:35 p.m.