Triple

T11923328
Position Surface form Disambiguated ID Type / Status
Subject Gresham, Chicago E283714 entity
Predicate isServedByTransitSystem P20704 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: [Gresham, Chicago, isServedByTransitSystem, Chicago Transit Authority]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Chicago Transit Authority
Context triple: [Gresham, Chicago, isServedByTransitSystem, 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. London Transit Commission
    The London Transit Commission is the public transportation agency responsible for operating bus services throughout the city of London, Ontario.
  • 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 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.
  • E. St. Charles Area Transit system
    The St. Charles Area Transit system is the public bus network serving residents and visitors in St. Charles, Missouri.
  • 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: isServedByTransitSystem
Context triple: [Gresham, Chicago, isServedByTransitSystem, Chicago Transit Authority]
  • A. appliesToTransitSystem
    Indicates that something (such as a rule, policy, feature, or condition) is relevant or applicable to a particular transit or transportation system.
  • B. hasPublicTransitProvider chosen
    Indicates that a place or region is served by a specific public transit operating organization or agency.
  • C. hasPublicTransitRole
    Indicates that an entity holds a specific functional role or responsibility within a public transit system.
  • D. hasPublicTransitServiceLevel
    Indicates the level or quality of public transit service provided to or available at a given location or entity.
  • E. isPublicTransport
    Indicates that the entity functions as a mode or instance of transportation that is available for use by the general public, typically operating on fixed routes or schedules.
  • 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_69d6ab2ce9c48190b5d39511b524f666 completed April 8, 2026, 7:23 p.m.
NER Named-entity recognition batch_69d8e8e2fc648190a446c1917db1c7d9 completed April 10, 2026, 12:11 p.m.
NED1 Entity disambiguation (via context triple) batch_69f44042cf1c81909de44acfe1202482 completed May 1, 2026, 5:55 a.m.
PD Predicate disambiguation batch_69d8bb3632ac8190b13e53c2b5db7125 completed April 10, 2026, 8:56 a.m.
Created at: April 8, 2026, 9:45 p.m.