Triple

T17725859
Position Surface form Disambiguated ID Type / Status
Subject Chicago Transit Authority Green Line stations E442458 entity
Predicate hasStation P35 FINISHED
Object Indiana station (CTA Green Line)
Indiana station is an elevated Chicago Transit Authority rapid transit stop on the South Side, serving the Green Line.
 E1292649 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: Indiana station (CTA Green Line) | Statement: [Chicago Transit Authority Green Line stations, hasStation, Indiana station (CTA Green Line)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Indiana station (CTA Green Line)
Context triple: [Chicago Transit Authority Green Line stations, hasStation, Indiana station (CTA Green Line)]
  • A. Addison (Brown Line) station
    Addison (Brown Line) station is an elevated Chicago 'L' rapid transit stop serving the Brown Line on the city's North Side.
  • B. Pulaski station (CTA Green Line)
    Pulaski station (CTA Green Line) is an elevated Chicago 'L' rapid transit stop serving the West Garfield Park neighborhood on the city's West Side.
  • C. Addison station (CTA Red Line)
    Addison station (CTA Red Line) is a Chicago 'L' rapid transit stop on the Red Line located in the Lakeview neighborhood, best known for serving fans attending games and events at nearby Wrigley Field.
  • D. Addison station (CTA Blue Line)
    Addison station (CTA Blue Line) is an elevated Chicago Transit Authority rapid transit stop on the Blue Line serving the Avondale neighborhood on the city’s Northwest Side.
  • E. Howard station (CTA Red Line)
    Howard station (CTA Red Line) is a major Chicago Transit Authority rail terminal on the city’s North Side that serves as an interchange between the Red, Purple, and Yellow Lines.
  • 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: Indiana station (CTA Green Line)
Triple: [Chicago Transit Authority Green Line stations, hasStation, Indiana station (CTA Green Line)]
Generated description
Indiana station is an elevated Chicago Transit Authority rapid transit stop on the South Side, serving the Green Line.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Indiana station (CTA Green Line)
Target entity description: Indiana station is an elevated Chicago Transit Authority rapid transit stop on the South Side, serving the Green Line.
  • A. Addison (Brown Line) station
    Addison (Brown Line) station is an elevated Chicago 'L' rapid transit stop serving the Brown Line on the city's North Side.
  • B. Pulaski station (CTA Green Line)
    Pulaski station (CTA Green Line) is an elevated Chicago 'L' rapid transit stop serving the West Garfield Park neighborhood on the city's West Side.
  • C. Addison station (CTA Red Line)
    Addison station (CTA Red Line) is a Chicago 'L' rapid transit stop on the Red Line located in the Lakeview neighborhood, best known for serving fans attending games and events at nearby Wrigley Field.
  • D. Addison station (CTA Blue Line)
    Addison station (CTA Blue Line) is an elevated Chicago Transit Authority rapid transit stop on the Blue Line serving the Avondale neighborhood on the city’s Northwest Side.
  • E. Howard station (CTA Red Line)
    Howard station (CTA Red Line) is a major Chicago Transit Authority rail terminal on the city’s North Side that serves as an interchange between the Red, Purple, and Yellow Lines.
  • 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_6a030c4ffab8819082b850acf4301621 completed May 12, 2026, 11:17 a.m.
NEDg Description generation batch_6a030d596fc08190b0d8576088332a01 completed May 12, 2026, 11:22 a.m.
NED2 Entity disambiguation (via description) batch_6a030dde2bbc8190b10f3c2d45c90f2b completed May 12, 2026, 11:24 a.m.
Created at: April 10, 2026, 10:07 a.m.