Triple

T21167217
Position Surface form Disambiguated ID Type / Status
Subject Green Line (CTA) main line E521596 entity
Predicate hasBranch P35 FINISHED
Object Green Line (CTA) Harlem/Lake branch 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: Green Line (CTA) Harlem/Lake branch | Statement: [Green Line (CTA) main line, hasBranch, Green Line (CTA) Harlem/Lake branch]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Green Line (CTA) Harlem/Lake branch
Context triple: [Green Line (CTA) main line, hasBranch, Green Line (CTA) Harlem/Lake branch]
  • A. 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.
  • B. Yellow Line (CTA)
    The Yellow Line (CTA), also known as the Skokie Swift, is a short Chicago Transit Authority rapid transit route that runs between Howard and Skokie without serving downtown Chicago.
  • C. North Side Main Line (CTA Red Line)
    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. Lenox Avenue Line
    The Lenox Avenue Line is a major New York City Subway route in Harlem, Manhattan, primarily served by IRT trains running beneath Lenox Avenue.
  • E. Seventh Avenue Line
    The Seventh Avenue Line is a major New York City Subway trunk route running along Manhattan’s Seventh Avenue, serving as a key north–south corridor for multiple subway services.
  • 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: Green Line (CTA) Harlem/Lake branch
Target entity description: The Green Line (CTA) Harlem/Lake branch is a segment of Chicago’s Green Line rapid transit route that serves the city’s West Side and extends into the suburb of Oak Park, terminating at Harlem/Lake station.
  • A. Green Line (CTA) main line chosen
    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.
  • B. Yellow Line (CTA)
    The Yellow Line (CTA), also known as the Skokie Swift, is a short Chicago Transit Authority rapid transit route that runs between Howard and Skokie without serving downtown Chicago.
  • C. North Side Main Line (CTA Red Line)
    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. Lenox Avenue Line
    The Lenox Avenue Line is a major New York City Subway route in Harlem, Manhattan, primarily served by IRT trains running beneath Lenox Avenue.
  • E. Seventh Avenue Line
    The Seventh Avenue Line is a major New York City Subway trunk route running along Manhattan’s Seventh Avenue, serving as a key north–south corridor for multiple subway services.
  • F. None of above.

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_69e0b50e30748190b186824a206d39b9 completed April 16, 2026, 10:08 a.m.
NER Named-entity recognition batch_69e7270fce708190a5715b55b406dd4e completed April 21, 2026, 7:28 a.m.
Created at: April 16, 2026, 3 p.m.