Triple

T10659833
Position Surface form Disambiguated ID Type / Status
Subject Washington/Wells station (CTA) E251193 entity
Predicate replacedStation P20874 FINISHED
Object Madison/Wells station (CTA)
Madison/Wells station (CTA) was a former elevated rapid transit station in downtown Chicago’s Loop that once served the Chicago Transit Authority before being replaced by Washington/Wells station.
 E251193 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: Madison/Wells station (CTA) | Statement: [Washington/Wells station (CTA), replacedStation, Madison/Wells station (CTA)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Madison/Wells station (CTA)
Context triple: [Washington/Wells station (CTA), replacedStation, Madison/Wells 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. Washington/Wells station (CTA)
    Washington/Wells station (CTA) is an elevated Chicago 'L' train station in the Loop that serves multiple lines and provides convenient access to downtown civic and commercial destinations.
  • C. 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.
  • D. Berwyn station (Chicago "L")
    Berwyn station is a Chicago "L" rapid transit stop on the Red Line located in the Edgewater neighborhood on the city's North Side.
  • E. Chicago/Franklin station (Chicago "L")
    Chicago/Franklin station was a former elevated rapid transit stop on Chicago’s "L" system that operated on the North Side main line near the city’s River North 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: Madison/Wells station (CTA)
Triple: [Washington/Wells station (CTA), replacedStation, Madison/Wells station (CTA)]
Generated description
Madison/Wells station (CTA) was a former elevated rapid transit station in downtown Chicago’s Loop that once served the Chicago Transit Authority before being replaced by Washington/Wells station.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Madison/Wells station (CTA)
Target entity description: Madison/Wells station (CTA) was a former elevated rapid transit station in downtown Chicago’s Loop that once served the Chicago Transit Authority before being replaced by Washington/Wells station.
  • 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. Washington/Wells station (CTA) chosen
    Washington/Wells station (CTA) is an elevated Chicago 'L' train station in the Loop that serves multiple lines and provides convenient access to downtown civic and commercial destinations.
  • C. 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.
  • D. Berwyn station (Chicago "L")
    Berwyn station is a Chicago "L" rapid transit stop on the Red Line located in the Edgewater neighborhood on the city's North Side.
  • E. Chicago/Franklin station (Chicago "L")
    Chicago/Franklin station was a former elevated rapid transit stop on Chicago’s "L" system that operated on the North Side main line near the city’s River North area.
  • F. None of above.

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_69d6aa5b0d2881909584b20efc5877f0 completed April 8, 2026, 7:19 p.m.
NER Named-entity recognition batch_69d6e0174dc4819093e577993c65ed32 completed April 8, 2026, 11:09 p.m.
NED1 Entity disambiguation (via context triple) batch_69dbace2a5388190bb685d347dd8aa6c completed April 12, 2026, 2:32 p.m.
NEDg Description generation batch_69dbaeb211088190a9118c71918584e5 completed April 12, 2026, 2:39 p.m.
NED2 Entity disambiguation (via description) batch_69dbaf7c999c819097a8cdf5bd82f648 completed April 12, 2026, 2:43 p.m.
Created at: April 8, 2026, 9:07 p.m.