Triple

T94960
Position Surface form Disambiguated ID Type / Status
Subject Ventra E1909 entity
Predicate launchedBy P1408 FINISHED
Object Chicago Transit Authority E409 NE FINISHED

How this triple was built (3 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 | Statement: [Ventra, launchedBy, Chicago Transit Authority]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Chicago Transit Authority
Context triple: [Ventra, launchedBy, Chicago Transit Authority]
  • A. Chicago Transit Authority chosen
    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. Chicago Rapid Transit Company
    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.
  • D. Toronto Transit Commission
    The Toronto Transit Commission is the public agency that operates Toronto’s primary network of subways, buses, and streetcars.
  • E. Regional Transportation Authority of Northeastern Illinois
    The Regional Transportation Authority of Northeastern Illinois is the oversight and funding agency that coordinates public transit services, including those of the Chicago Transit Authority, across the Chicago metropolitan area.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: launchedBy
Context triple: [Ventra, launchedBy, Chicago Transit Authority]
  • A. initiatedBy chosen
    Indicates that an action, event, or process was started or set in motion by a particular entity.
  • B. enactedBy
    Indicates that a law, policy, or formal measure is officially established or brought into effect by a specific authority or governing body.
  • C. launchDate
    Indicates the date on which an entity (such as a product, service, or project) is officially released or made available.
  • D. ownedBy
    Indicates that one entity possesses legal or rightful ownership of another entity.
  • E. fueledBy
    Indicates that one entity provides the energy or power source that enables the operation or functioning of another entity.
  • F. None of above.

Provenance (4 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_69a24d4862f881908cc8b89d3a78031d completed Feb. 28, 2026, 2:04 a.m.
NER Named-entity recognition batch_69a24feef1b08190bb9525f71cce053e completed Feb. 28, 2026, 2:16 a.m.
NED1 Entity disambiguation (via context triple) batch_69a284fd52f08190b264937658192e79 completed Feb. 28, 2026, 6:02 a.m.
PD Predicate disambiguation batch_69a24ebb3da08190a8b82564f33cde3b completed Feb. 28, 2026, 2:11 a.m.
Created at: Feb. 28, 2026, 2:09 a.m.