Triple

T21007412
Position Surface form Disambiguated ID Type / Status
Subject Red Line (CTA) E517447 entity
Predicate terminus P388 FINISHED
Object 95th/Dan Ryan station — 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: 95th/Dan Ryan station | Statement: [Red Line (CTA), terminus, 95th/Dan Ryan station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: 95th/Dan Ryan station
Context triple: [Red Line (CTA), terminus, 95th/Dan Ryan station]
  • A. 95th/Dan Ryan station chosen
    95th/Dan Ryan station is a major Chicago Transit Authority rail terminal on the South Side that serves as a key bus-rail transfer hub and the southern endpoint of the Red Line.
  • B. Evanston Davis Street station
    Evanston Davis Street station is a commuter rail station in Evanston, Illinois, serving downtown Evanston with Metra service to and from Chicago.
  • C. Quincy station (CTA)
    Quincy station (CTA) is a historic elevated rapid transit stop in downtown Chicago’s Loop, known for its preserved 19th-century architecture and service to multiple ‘L’ lines including the Orange Line.
  • D. Morgan Park station
    Morgan Park station is a Metra commuter rail stop serving Chicago’s Morgan Park neighborhood on the city’s Far South Side.
  • E. Chicago (Brown Line) station
    Chicago (Brown Line) station is an 'L' rapid transit stop in Chicago, Illinois, serving the CTA's Brown Line trains.
  • 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_69e0b50192308190a284fcc89dd23a49 completed April 16, 2026, 10:08 a.m.
NER Named-entity recognition batch_69e6fc3cc8648190b1a419ef734a69e6 completed April 21, 2026, 4:25 a.m.
Created at: April 16, 2026, 1:53 p.m.