Triple

T21362228
Position Surface form Disambiguated ID Type / Status
Subject Montrose Avenue E526810 entity
Predicate hasPublicTransitStation P15438 FINISHED
Object 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.
 E1480196 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 Brown Line) | Statement: [Montrose Avenue, hasPublicTransitStation, Montrose station (CTA Brown Line)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Montrose station (CTA Brown Line)
Context triple: [Montrose Avenue, hasPublicTransitStation, Montrose station (CTA Brown Line)]
  • A. Monroe (CTA Red Line station)
    Monroe is an underground Chicago 'L' station on the Red Line located in the downtown Loop 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. 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.
  • 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. Chicago Avenue station (CTA Brown Line)
    Chicago Avenue station (CTA Brown Line) is an elevated Chicago Transit Authority rapid transit stop on the Brown Line serving the Near North Side of Chicago.
  • 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 Brown Line)
Triple: [Montrose Avenue, hasPublicTransitStation, Montrose station (CTA Brown Line)]
Generated description
Montrose station (CTA Brown Line) is an elevated Chicago 'L' rapid transit stop on the Brown Line serving the North Center/Lincoln Square area.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Montrose station (CTA Brown Line)
Target entity description: Montrose station (CTA Brown Line) is an elevated Chicago 'L' rapid transit stop on the Brown Line serving the North Center/Lincoln Square area.
  • A. Monroe (CTA Red Line station)
    Monroe is an underground Chicago 'L' station on the Red Line located in the downtown Loop 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. 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.
  • 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. Chicago Avenue station (CTA Brown Line)
    Chicago Avenue station (CTA Brown Line) is an elevated Chicago Transit Authority rapid transit stop on the Brown Line serving the Near North Side of Chicago.
  • 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_6a09ad69993881909b52927f7372fa0a completed May 17, 2026, 11:58 a.m.
NEDg Description generation batch_6a09ae3744588190877e88dd38a80ebd completed May 17, 2026, 12:01 p.m.
NED2 Entity disambiguation (via description) batch_6a09af2184808190b42b5073e90bd83d completed May 17, 2026, 12:05 p.m.
Created at: April 16, 2026, 5:08 p.m.