Triple

T5926188
Position Surface form Disambiguated ID Type / Status
Subject Oakton–Skokie station E131815 entity
Predicate isWithinSystem P58477 FINISHED
Object CTA North Side division E75239 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: CTA North Side division | Statement: [Oakton–Skokie station, isWithinSystem, CTA North Side division]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: CTA North Side division
Context triple: [Oakton–Skokie station, isWithinSystem, CTA North Side division]
  • A. CTA Blue Line
    The CTA Blue Line is a major Chicago 'L' rapid transit route that runs between O'Hare International Airport, downtown Chicago, and the city's western neighborhoods and suburbs.
  • B. CTA Orange Line
    The CTA Orange Line is a Chicago 'L' rapid transit route that runs between the Loop and Midway International Airport, serving the city's Southwest Side.
  • C. CTA Brown Line chosen
    The CTA Brown Line is a Chicago 'L' rapid transit route that runs from the city's Northwest Side into the downtown Loop, serving numerous residential and commercial neighborhoods.
  • D. CTA Green Line
    The CTA Green Line is one of Chicago's elevated rapid transit routes, running primarily along the city's West and South Sides and serving the downtown Loop.
  • E. 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.
  • 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: isWithinSystem
Context triple: [Oakton–Skokie station, isWithinSystem, CTA North Side division]
  • A. isInSystem chosen
    Indicates that one entity is located within, belongs to, or is contained by a particular system.
  • B. isPartOfSystemProtecting
    Indicates that one entity functions as a component within a larger system whose purpose is to provide protection.
  • C. existsWithin
    Indicates that one entity is located inside the spatial, temporal, or conceptual boundaries of another entity.
  • D. isOnSystemMap
    Indicates that an entity is currently displayed or represented on a particular system map.
  • E. isWithinFacility
    Indicates that one entity is physically located inside the boundaries or premises of a specified facility.
  • 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_69c0085b75e88190a632f9691f9da48b completed March 22, 2026, 3:18 p.m.
NER Named-entity recognition batch_69c03c9239e08190bff7ef2bd6d21ae0 completed March 22, 2026, 7:01 p.m.
NED1 Entity disambiguation (via context triple) batch_69c0c04e5af8819095f15cfbc1f13c46 completed March 23, 2026, 4:23 a.m.
PD Predicate disambiguation batch_69c033541d108190a34d1fde2fe9dacb completed March 22, 2026, 6:22 p.m.
Created at: March 22, 2026, 4 p.m.