Triple

T14931503
Position Surface form Disambiguated ID Type / Status
Subject Belmont station (CTA North Side Main Line) E372275 entity
Predicate hasAdjacentStationOnBrownLine P55420 FINISHED
Object Wellington station (CTA)
Wellington station (CTA) is an elevated Chicago 'L' rapid transit stop in the Lakeview neighborhood served by the Brown and Purple Lines.
E1130895 NE FINISHED

How this triple was built (5 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: Wellington station (CTA) | Statement: [Belmont station (CTA North Side Main Line), hasAdjacentStationOnBrownLine, Wellington station (CTA)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Wellington station (CTA)
Context triple: [Belmont station (CTA North Side Main Line), hasAdjacentStationOnBrownLine, Wellington station (CTA)]
  • A. Washington/Wabash station (CTA)
    Washington/Wabash station (CTA) is an elevated Chicago 'L' station in the Loop serving the Brown, Green, Orange, Pink, and Purple Lines.
  • B. Argyle station (CTA)
    Argyle station (CTA) is an elevated Chicago 'L' rapid transit stop on the Red Line serving the Uptown neighborhood’s Argyle Street area.
  • C. Sedgwick station (Chicago "L")
    Sedgwick station is a historic Chicago "L" rapid transit stop on the city's North Side that has operated since the early 20th century.
  • D. Clark/Lake station (CTA)
    Clark/Lake station (CTA) is a major elevated and subway transfer station in downtown Chicago’s Loop, serving multiple Chicago 'L' lines and providing convenient access to nearby civic and commercial destinations.
  • E. Quincy station (CTA)
    Quincy station (CTA) is a historic elevated rapid transit stop in downtown Chicago’s Loop, known for its preserved 19th-century architecture and service to multiple ‘L’ lines including the Orange 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: Wellington station (CTA)
Triple: [Belmont station (CTA North Side Main Line), hasAdjacentStationOnBrownLine, Wellington station (CTA)]
Generated description
Wellington station (CTA) is an elevated Chicago 'L' rapid transit stop in the Lakeview neighborhood served by the Brown and Purple Lines.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Wellington station (CTA)
Target entity description: Wellington station (CTA) is an elevated Chicago 'L' rapid transit stop in the Lakeview neighborhood served by the Brown and Purple Lines.
  • A. Washington/Wabash station (CTA)
    Washington/Wabash station (CTA) is an elevated Chicago 'L' station in the Loop serving the Brown, Green, Orange, Pink, and Purple Lines.
  • B. Argyle station (CTA)
    Argyle station (CTA) is an elevated Chicago 'L' rapid transit stop on the Red Line serving the Uptown neighborhood’s Argyle Street area.
  • C. Sedgwick station (Chicago "L")
    Sedgwick station is a historic Chicago "L" rapid transit stop on the city's North Side that has operated since the early 20th century.
  • D. Clark/Lake station (CTA)
    Clark/Lake station (CTA) is a major elevated and subway transfer station in downtown Chicago’s Loop, serving multiple Chicago 'L' lines and providing convenient access to nearby civic and commercial destinations.
  • E. Quincy station (CTA)
    Quincy station (CTA) is a historic elevated rapid transit stop in downtown Chicago’s Loop, known for its preserved 19th-century architecture and service to multiple ‘L’ lines including the Orange Line.
  • F. None of above. chosen
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: hasAdjacentStationOnBrownLine
Context triple: [Belmont station (CTA North Side Main Line), hasAdjacentStationOnBrownLine, Wellington station (CTA)]
  • A. adjacentStationOnBrownLine chosen
    Indicates that one station is directly next to another station along the Brown Line, with no other stations in between.
  • B. hasAdjacentStationOnRedLine
    Indicates that one station is directly next to another station along the red transit line, with no other stations in between.
  • C. hasAdjacentStationOnMattapanLine
    Indicates that one station is directly next to another station along the Mattapan Line, with no other stations in between.
  • D. hasAdjacentStationOnGreenLine
    Indicates that one station is directly next to another station along the Green Line.
  • E. hasAdjacentStationOnYellowLine
    Indicates that one station is directly next to another station along the yellow transit line.
  • F. None of above.

Provenance (6 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_69d85cc9da0c81908d583ca3f63a3908 completed April 10, 2026, 2:13 a.m.
NER Named-entity recognition batch_69ded64550dc8190ba44120df00ba498 completed April 15, 2026, 12:05 a.m.
NED1 Entity disambiguation (via context triple) batch_69fe8bd3fef481908e4d2ffdcfa87def completed May 9, 2026, 1:20 a.m.
NEDg Description generation batch_69fe900adae88190860ce8b12dfaba4c completed May 9, 2026, 1:38 a.m.
NED2 Entity disambiguation (via description) batch_69fe92509e58819093f6cdaaec4e3f19 completed May 9, 2026, 1:48 a.m.
PD Predicate disambiguation batch_69de9a52ba988190a26e268b4ea083ea completed April 14, 2026, 7:49 p.m.
Created at: April 10, 2026, 2:36 a.m.