Triple

T17725844
Position Surface form Disambiguated ID Type / Status
Subject Chicago Transit Authority Green Line stations E442458 entity
Predicate hasStation P35 FINISHED
Object 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.
 E1290422 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: Pulaski station (CTA Green Line) | Statement: [Chicago Transit Authority Green Line stations, hasStation, Pulaski station (CTA Green Line)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Pulaski station (CTA Green Line)
Context triple: [Chicago Transit Authority Green Line stations, hasStation, Pulaski station (CTA Green Line)]
  • A. 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.
  • B. Oak Park station (CTA Green Line)
    Oak Park station (CTA Green Line) is an elevated rapid transit stop in Oak Park, Illinois, serving Chicago's Green Line with access to the surrounding residential and commercial areas just west of the city.
  • C. Paulina station (CTA)
    Paulina station (CTA) was a former Chicago 'L' rapid transit station on the Brown Line located in the Lakeview neighborhood.
  • D. 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.
  • 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: Pulaski station (CTA Green Line)
Triple: [Chicago Transit Authority Green Line stations, hasStation, Pulaski station (CTA Green Line)]
Generated description
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.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Pulaski station (CTA Green Line)
Target entity description: 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.
  • A. 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.
  • B. Oak Park station (CTA Green Line)
    Oak Park station (CTA Green Line) is an elevated rapid transit stop in Oak Park, Illinois, serving Chicago's Green Line with access to the surrounding residential and commercial areas just west of the city.
  • C. Paulina station (CTA)
    Paulina station (CTA) was a former Chicago 'L' rapid transit station on the Brown Line located in the Lakeview neighborhood.
  • D. 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.
  • 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_6a0306e5b0048190b7e3646c0b4ebef1 completed May 12, 2026, 10:54 a.m.
NEDg Description generation batch_6a03076d2df88190b7165515d1471ee9 completed May 12, 2026, 10:56 a.m.
NED2 Entity disambiguation (via description) batch_6a0307f6b8e0819090c2a600477cbb5b completed May 12, 2026, 10:59 a.m.
Created at: April 10, 2026, 10:07 a.m.