Triple

T21362229
Position Surface form Disambiguated ID Type / Status
Subject Montrose Avenue E526810 entity
Predicate hasPublicTransitStation P15438 FINISHED
Object Montrose station (CTA Blue Line)
Montrose station (CTA Blue Line) is an elevated Chicago Transit Authority rapid transit stop on the Blue Line’s O’Hare branch serving the Irving Park neighborhood.
 E1480908 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: Montrose station (CTA Blue Line) | Statement: [Montrose Avenue, hasPublicTransitStation, Montrose station (CTA Blue Line)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Montrose station (CTA Blue Line)
Context triple: [Montrose Avenue, hasPublicTransitStation, Montrose station (CTA Blue Line)]
  • A. Montrose station (CTA Brown Line)
    Montrose station (CTA Brown Line) is an elevated Chicago 'L' rapid transit stop on the Brown Line serving the North Center/Lincoln Square area.
  • B. 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.
  • C. Monroe (CTA Blue Line station)
    Monroe is a Chicago Transit Authority Blue Line subway station located in downtown Chicago’s Loop, serving the city’s central business district.
  • D. 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.
  • E. Monroe (CTA Red Line station)
    Monroe is an underground Chicago 'L' station on the Red Line located in the downtown Loop area.
  • 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: Montrose station (CTA Blue Line)
Triple: [Montrose Avenue, hasPublicTransitStation, Montrose station (CTA Blue Line)]
Generated description
Montrose station (CTA Blue Line) is an elevated Chicago Transit Authority rapid transit stop on the Blue Line’s O’Hare branch serving the Irving Park neighborhood.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Montrose station (CTA Blue Line)
Target entity description: Montrose station (CTA Blue Line) is an elevated Chicago Transit Authority rapid transit stop on the Blue Line’s O’Hare branch serving the Irving Park neighborhood.
  • A. Montrose station (CTA Brown Line)
    Montrose station (CTA Brown Line) is an elevated Chicago 'L' rapid transit stop on the Brown Line serving the North Center/Lincoln Square area.
  • B. 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.
  • C. Monroe (CTA Blue Line station)
    Monroe is a Chicago Transit Authority Blue Line subway station located in downtown Chicago’s Loop, serving the city’s central business district.
  • D. 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.
  • E. Monroe (CTA Red Line station)
    Monroe is an underground Chicago 'L' station on the Red Line located in the downtown Loop area.
  • 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_69e0b51d8a308190b09113b3b3f9bc15 completed April 16, 2026, 10:08 a.m.
NER Named-entity recognition batch_69e8b06b219c81908f7674ae459e7931 completed April 22, 2026, 11:26 a.m.
NED1 Entity disambiguation (via context triple) batch_6a09b41ab62c819098f000504bb321e0 completed May 17, 2026, 12:27 p.m.
NEDg Description generation batch_6a09b4a5add4819080060d9395f69cc4 completed May 17, 2026, 12:29 p.m.
NED2 Entity disambiguation (via description) batch_6a09b62db0a4819099bd5dac91a08770 completed May 17, 2026, 12:35 p.m.
Created at: April 16, 2026, 5:08 p.m.