Triple

T15469522
Position Surface form Disambiguated ID Type / Status
Subject Ashland (CTA Pink Line station) E372120 entity
Predicate hasAdjacentStation P231 FINISHED
Object Polk (CTA Pink Line station)
Polk is a Chicago Transit Authority Pink Line rapid transit station serving the Illinois Medical District and nearby Near West Side neighborhoods.
 E1158704 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: Polk (CTA Pink Line station) | Statement: [Ashland (CTA Pink Line station), hasAdjacentStation, Polk (CTA Pink Line station)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Polk (CTA Pink Line station)
Context triple: [Ashland (CTA Pink Line station), hasAdjacentStation, Polk (CTA Pink Line station)]
  • 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. Paulina station (CTA)
    Paulina station (CTA) was a former Chicago 'L' rapid transit station on the Brown Line located in the Lakeview neighborhood.
  • C. Monroe (CTA Red Line station)
    Monroe is an underground Chicago 'L' station on the Red Line located in the downtown Loop area.
  • D. Jackson (CTA Red Line station)
    Jackson is a major Chicago Transit Authority Red Line subway station located in downtown Chicago’s Loop, serving as a key transfer point within the city’s rapid transit system.
  • E. Chicago Avenue station (CTA Purple Line)
    Chicago Avenue station (CTA Purple Line) is an elevated Chicago Transit Authority rapid transit stop in Evanston, Illinois, serving the Purple Line.
  • 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: Polk (CTA Pink Line station)
Triple: [Ashland (CTA Pink Line station), hasAdjacentStation, Polk (CTA Pink Line station)]
Generated description
Polk is a Chicago Transit Authority Pink Line rapid transit station serving the Illinois Medical District and nearby Near West Side neighborhoods.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Polk (CTA Pink Line station)
Target entity description: Polk is a Chicago Transit Authority Pink Line rapid transit station serving the Illinois Medical District and nearby Near West Side neighborhoods.
  • 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. Paulina station (CTA)
    Paulina station (CTA) was a former Chicago 'L' rapid transit station on the Brown Line located in the Lakeview neighborhood.
  • C. Monroe (CTA Red Line station)
    Monroe is an underground Chicago 'L' station on the Red Line located in the downtown Loop area.
  • D. Jackson (CTA Red Line station)
    Jackson is a major Chicago Transit Authority Red Line subway station located in downtown Chicago’s Loop, serving as a key transfer point within the city’s rapid transit system.
  • E. Chicago Avenue station (CTA Purple Line)
    Chicago Avenue station (CTA Purple Line) is an elevated Chicago Transit Authority rapid transit stop in Evanston, Illinois, serving the Purple Line.
  • 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_69d85cc8bd308190886949510b42e764 completed April 10, 2026, 2:13 a.m.
NER Named-entity recognition batch_69e03f6b49788190b270fdfe92646842 completed April 16, 2026, 1:46 a.m.
NED1 Entity disambiguation (via context triple) batch_69ff2d03845c8190bc8cb96827a5da39 completed May 9, 2026, 12:48 p.m.
NEDg Description generation batch_69ff2e2fb3e48190b2274d54586b1f00 completed May 9, 2026, 12:53 p.m.
NED2 Entity disambiguation (via description) batch_69ff2ec231dc8190b82333e3e54ced20 completed May 9, 2026, 12:55 p.m.
Created at: April 10, 2026, 3:33 a.m.