Triple

T21966059
Position Surface form Disambiguated ID Type / Status
Subject Addison station (CTA Blue Line) E542458 entity
Predicate isOnBranch P20674 FINISHED
Object O'Hare branch of the Blue Line — NE NERFINISHED

How this triple was built (2 steps)

Every LLM step that produced this triple, in pipeline order — named-entity classification, the disambiguation choices (the exact options shown, with the pick highlighted), and the generated description. The batch + timestamp of each is in the Provenance table below.

NER Named-entity recognition gpt-5-mini
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: O'Hare branch of the Blue Line | Statement: [Addison station (CTA Blue Line), isOnBranch, O'Hare branch of the Blue Line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: O'Hare branch of the Blue Line
Context triple: [Addison station (CTA Blue Line), isOnBranch, O'Hare branch of the Blue Line]
  • A. O'Hare branch of the Blue Line chosen
    The O'Hare branch of the Blue Line is the Chicago 'L' rapid transit segment that runs northwest from downtown Chicago to O'Hare International Airport.
  • B. O'Hare station (CTA Blue Line)
    O'Hare station (CTA Blue Line) is a Chicago Transit Authority rapid transit station located at O'Hare International Airport, serving as the Blue Line’s western terminus and a major gateway between the airport and downtown Chicago.
  • C. Cermak Branch of Pink Line
    The Cermak Branch of the Pink Line is a rapid transit route on Chicago’s 'L' system that runs through the city’s West Side and Lower West Side neighborhoods, connecting them to the Loop.
  • D. Chicago station (Blue Line)
    Chicago station (Blue Line) is an underground Chicago 'L' rapid transit station in the city's River West area, serving the Blue Line between downtown and O'Hare International Airport.
  • E. Orange Line at Clark/Lake
    The Orange Line at Clark/Lake is a Chicago 'L' rapid transit route serving the Loop and Midway Airport, intersecting multiple CTA lines at the busy Clark/Lake station.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (2 batches)

The batch behind each pipeline step, in order, with when it ran. Timestamps are batch-level — stages were processed in waves, so the object chain (NER → NED1 → NEDg → NED2) reads in order, but predicate / elicitation batches can sit in a different wave.

Step Stage Batch ID Status When
creating Elicitation batch_69e0c47fab1081908dc74a6545dbb051 completed April 16, 2026, 11:14 a.m.
NER Named-entity recognition batch_69f1245aabf88190a44564e6eaaa94ce completed April 28, 2026, 9:19 p.m.
Created at: April 16, 2026, 8:01 p.m.