Triple

T1311317
Position Surface form Disambiguated ID Type / Status
Subject Metra Union Pacific West Line E27995 entity
Predicate connectsWith P37 FINISHED
Object Chicago Transit Authority bus network in Chicago E50849 NE FINISHED

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 bus network in Chicago | Statement: [Metra Union Pacific West Line, connectsWith, Chicago Transit Authority bus network in Chicago]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Chicago Transit Authority bus network in Chicago
Context triple: [Metra Union Pacific West Line, connectsWith, Chicago Transit Authority bus network in Chicago]
  • A. 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.
  • B. Chicago Surface Lines
    Chicago Surface Lines was a privately operated streetcar and bus system that provided most of Chicago’s surface public transportation in the first half of the 20th century.
  • C. London Transit Commission
    The London Transit Commission is the public transportation agency responsible for operating bus services throughout the city of London, Ontario.
  • D. Unitrans bus system
    The Unitrans bus system is a public transit service in Davis, California, primarily operated by UC Davis students and serving both the university campus and the surrounding community.
  • E. CTA buses chosen
    CTA buses are the public transit bus fleet operated by the Chicago Transit Authority, providing extensive local and express service throughout Chicago and some surrounding suburbs.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (3 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_69a496d7d83481908f83085854e51328 completed March 1, 2026, 7:43 p.m.
NER Named-entity recognition batch_69a4c1560f888190bdd9107b08395e0b completed March 1, 2026, 10:44 p.m.
NED1 Entity disambiguation (via context triple) batch_69acbaec736881909645919764d73f5f completed March 7, 2026, 11:55 p.m.
Created at: March 1, 2026, 7:51 p.m.