Triple

T19184278
Position Surface form Disambiguated ID Type / Status
Subject Jarvis station (CTA Red Line) E469657 entity
Predicate formerOperator P179 FINISHED
Object Chicago Rapid Transit Company 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 Rapid Transit Company | Statement: [Jarvis station (CTA Red Line), formerOperator, Chicago Rapid Transit Company]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Chicago Rapid Transit Company
Context triple: [Jarvis station (CTA Red Line), formerOperator, Chicago Rapid Transit Company]
  • A. Chicago Rapid Transit Company chosen
    The Chicago Rapid Transit Company was the private operator of Chicago’s elevated “L” rail system in the early 20th century before public transit was consolidated under the Chicago Transit Authority.
  • B. Chicago City Railway Company
    The Chicago City Railway Company was a major streetcar operator in Chicago that played a key role in developing the city’s public transit system in the late 19th and early 20th centuries.
  • C. 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.
  • D. 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.
  • E. Philadelphia Rapid Transit Company
    The Philadelphia Rapid Transit Company was a major early 20th-century public transit operator in Philadelphia that managed the city’s streetcar and rapid transit systems before being succeeded by later agencies.
  • 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_69d8dd0ad9088190a173b32657ae2e7a completed April 10, 2026, 11:20 a.m.
NER Named-entity recognition batch_69e5f61f1d9c8190b67555383d821958 completed April 20, 2026, 9:47 a.m.
Created at: April 10, 2026, 12:07 p.m.