Triple

T17725849
Position Surface form Disambiguated ID Type / Status
Subject Chicago Transit Authority Green Line stations E442458 entity
Predicate hasStation P35 FINISHED
Object Morgan station (CTA Green Line)
Morgan station is an elevated rapid transit stop in Chicago’s Near West Side serving the Chicago Transit Authority’s Green and Pink Lines.
 E1284873 NE FINISHED

How this triple was built (4 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: Morgan station (CTA Green Line) | Statement: [Chicago Transit Authority Green Line stations, hasStation, Morgan station (CTA Green Line)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Morgan station (CTA Green Line)
Context triple: [Chicago Transit Authority Green Line stations, hasStation, Morgan station (CTA Green Line)]
  • A. Morse station (CTA Red Line)
    Morse station (CTA Red Line) is an elevated rapid transit stop on Chicago's Red Line serving the Rogers Park neighborhood on the city's North Side.
  • B. Kedzie station (CTA Green Line)
    Kedzie station (CTA Green Line) is an elevated Chicago 'L' rapid transit stop serving the city's West Side along the Chicago Transit Authority's Green Line.
  • C. Belmont station (CTA Red Line)
    Belmont station (CTA Red Line) is a major Chicago 'L' rapid transit hub in the Lakeview neighborhood where the Red, Brown, and Purple Lines converge.
  • D. Central station (CTA Green Line)
    Central station (CTA Green Line) is an elevated Chicago 'L' rapid transit stop in the Austin neighborhood, serving the Green Line's Lake Branch on Chicago's West Side.
  • E. 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.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg Description generation gpt-5.1
Instruction
Generate a one-sentence description of the target entity. 
You are given a context triple in the form (subject, predicate, object), where the object is the target entity. 
# Instructions
Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. 
Avoid repeating the information from the triple, unless really essential.
# Response Format
Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: Morgan station (CTA Green Line)
Triple: [Chicago Transit Authority Green Line stations, hasStation, Morgan station (CTA Green Line)]
Generated description
Morgan station is an elevated rapid transit stop in Chicago’s Near West Side serving the Chicago Transit Authority’s Green and Pink Lines.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Morgan station (CTA Green Line)
Target entity description: Morgan station is an elevated rapid transit stop in Chicago’s Near West Side serving the Chicago Transit Authority’s Green and Pink Lines.
  • A. Morse station (CTA Red Line)
    Morse station (CTA Red Line) is an elevated rapid transit stop on Chicago's Red Line serving the Rogers Park neighborhood on the city's North Side.
  • B. Kedzie station (CTA Green Line)
    Kedzie station (CTA Green Line) is an elevated Chicago 'L' rapid transit stop serving the city's West Side along the Chicago Transit Authority's Green Line.
  • C. Belmont station (CTA Red Line)
    Belmont station (CTA Red Line) is a major Chicago 'L' rapid transit hub in the Lakeview neighborhood where the Red, Brown, and Purple Lines converge.
  • D. Central station (CTA Green Line)
    Central station (CTA Green Line) is an elevated Chicago 'L' rapid transit stop in the Austin neighborhood, serving the Green Line's Lake Branch on Chicago's West Side.
  • E. 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.
  • F. None of above. chosen

Provenance (5 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_69d8b9ec79688190b86bdcef85a7b3aa completed April 10, 2026, 8:50 a.m.
NER Named-entity recognition batch_69e47489c59c8190bbffefad20dc6346 completed April 19, 2026, 6:22 a.m.
NED1 Entity disambiguation (via context triple) batch_6a0242f372c48190b918f21fb3662ff2 completed May 11, 2026, 8:58 p.m.
NEDg Description generation batch_6a0244f53f2c81909ee3dc16ff3e512e completed May 11, 2026, 9:07 p.m.
NED2 Entity disambiguation (via description) batch_6a02459d9ab48190b8b28b75f412c64e completed May 11, 2026, 9:09 p.m.
Created at: April 10, 2026, 10:07 a.m.