Triple

T18651049
Position Surface form Disambiguated ID Type / Status
Subject Chicago Avenue station (CTA Brown Line) E455935 entity
Predicate publicTransitSystem P1288 FINISHED
Object Chicago Transit Authority 'L' system — 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: Chicago Transit Authority 'L' system | Statement: [Chicago Avenue station (CTA Brown Line), publicTransitSystem, Chicago Transit Authority 'L' system]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Chicago Transit Authority 'L' system
Context triple: [Chicago Avenue station (CTA Brown Line), publicTransitSystem, Chicago Transit Authority 'L' system]
  • A. Chicago Transit Authority ‘L’ stations
    Chicago Transit Authority ‘L’ stations are elevated and subway rapid transit stops throughout Chicago that serve as key nodes in the city’s public transportation network.
  • B. Chicago "L" chosen
    The Chicago "L" is the elevated rapid transit system serving Chicago and some surrounding suburbs, known for its iconic above-ground tracks and extensive urban rail network.
  • C. Chicago Transit Authority
    The Chicago Transit Authority is the primary public transportation agency serving Chicago and several surrounding suburbs, operating the city’s extensive network of buses and rapid transit trains.
  • D. MAX Red Line light rail
    The MAX Red Line light rail is a public transit service in the Portland metropolitan area that connects downtown Portland with Portland International Airport and other key destinations.
  • 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)

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_69d8d38ea1e88190997e9b231190ba6f completed April 10, 2026, 10:40 a.m.
NER Named-entity recognition batch_69e55011a8208190acf5e6f69a441043 completed April 19, 2026, 9:58 p.m.
Created at: April 10, 2026, 11:47 a.m.