Triple

T21382375
Position Surface form Disambiguated ID Type / Status
Subject Red Line (CTA) E527391 entity
Predicate partOf P40 FINISHED
Object North-South route of CTA 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: North-South route of CTA | Statement: [Red Line (CTA), partOf, North-South route of CTA]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: North-South route of CTA
Context triple: [Red Line (CTA), partOf, North-South route of CTA]
  • A. CTA North Side and North Suburban routes
    CTA North Side and North Suburban routes are a group of Chicago Transit Authority bus lines that serve neighborhoods on the city’s North Side and nearby northern suburbs.
  • B. Green Line (CTA) main line
    The Green Line (CTA) main line is a principal rapid transit route in Chicago’s 'L' system, running primarily along the South and West Sides and serving as a core corridor that branches to multiple termini.
  • C. North Side Main Line (CTA Red Line) chosen
    The North Side Main Line is a major elevated rapid transit corridor in Chicago that carries the Chicago Transit Authority's Red Line trains through the city's North Side neighborhoods.
  • D. Orange Line (post-1960s)
    The Orange Line (post-1960s) is a major rapid transit route in Boston’s MBTA system that succeeded the historic Washington Street Elevated and now runs from Oak Grove through downtown to Forest Hills.
  • E. Southwest Corridor of Chicago
    The Southwest Corridor of Chicago is a transit and development corridor on the city’s Southwest Side that links neighborhoods to downtown via routes such as the CTA Orange Line.
  • 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_69e0b51f363c8190944000ab5523b02b completed April 16, 2026, 10:08 a.m.
NER Named-entity recognition batch_69e8b0d1fa1c8190b3374e0bb3a971fc completed April 22, 2026, 11:28 a.m.
Created at: April 16, 2026, 5:12 p.m.