Triple

T17608646
Position Surface form Disambiguated ID Type / Status
Subject Pace Route 423 Linden CTA/The Glen/Harlem CTA E428905 entity
Predicate connectsTo P845 FINISHED
Object CTA Blue Line at Harlem station — NE NERFINISHED

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 Blue Line at Harlem station | Statement: [Pace Route 423 Linden CTA/The Glen/Harlem CTA, connectsTo, CTA Blue Line at Harlem station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: CTA Blue Line at Harlem station
Context triple: [Pace Route 423 Linden CTA/The Glen/Harlem CTA, connectsTo, CTA Blue Line at Harlem station]
  • A. Chicago station (Blue Line)
    Chicago station (Blue Line) is an underground Chicago 'L' rapid transit station in the city's River West area, serving the Blue Line between downtown and O'Hare International Airport.
  • B. CTA Green Line at Clark/Lake
    CTA Green Line at Clark/Lake is a major elevated Chicago 'L' station in the Loop where Green Line trains share a busy downtown transfer hub with multiple other CTA lines.
  • C. Pulaski station (CTA Orange Line)
    Pulaski station (CTA Orange Line) is an elevated rapid transit stop on Chicago’s Orange Line serving the West Elsdon neighborhood near Midway Airport.
  • D. Division station (CTA Blue Line)
    Division station (CTA Blue Line) is a Chicago 'L' subway station on the Blue Line serving the Wicker Park neighborhood.
  • E. CTA Purple Line
    The CTA Purple Line is a rapid transit route in Chicago’s ‘L’ system that primarily serves the northern suburbs and provides express service to downtown during weekday rush hours.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: CTA Blue Line at Harlem station
Target entity description: CTA Blue Line at Harlem station is a rapid transit stop on Chicago’s Blue Line serving the city’s Northwest Side and nearby suburbs with connections to local and regional bus routes.
  • A. Chicago station (Blue Line)
    Chicago station (Blue Line) is an underground Chicago 'L' rapid transit station in the city's River West area, serving the Blue Line between downtown and O'Hare International Airport.
  • B. CTA Green Line at Clark/Lake
    CTA Green Line at Clark/Lake is a major elevated Chicago 'L' station in the Loop where Green Line trains share a busy downtown transfer hub with multiple other CTA lines.
  • C. Pulaski station (CTA Orange Line)
    Pulaski station (CTA Orange Line) is an elevated rapid transit stop on Chicago’s Orange Line serving the West Elsdon neighborhood near Midway Airport.
  • D. Division station (CTA Blue Line)
    Division station (CTA Blue Line) is a Chicago 'L' subway station on the Blue Line serving the Wicker Park neighborhood.
  • E. CTA Purple Line
    The CTA Purple Line is a rapid transit route in Chicago’s ‘L’ system that primarily serves the northern suburbs and provides express service to downtown during weekday rush hours.
  • F. None of above. chosen

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_69d889e1c6148190ba76241e74688f8b completed April 10, 2026, 5:25 a.m.
NER Named-entity recognition batch_69e46c4d8374819097cb112fba405e77 completed April 19, 2026, 5:46 a.m.
Created at: April 10, 2026, 5:51 a.m.