Triple

T6914998
Position Surface form Disambiguated ID Type / Status
Subject Washington/Wells station E160027 entity
Predicate replacedStation P20874 FINISHED
Object Madison/Wells station
Madison/Wells station was a former elevated rapid transit stop on Chicago’s Loop ‘L’ that once served trains on the city’s downtown circuit.
 E631777 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 | Statement: [Washington/Wells station, replacedStation, Madison/Wells station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Madison/Wells station
Context triple: [Washington/Wells station, replacedStation, Madison/Wells station]
  • A. Madison station
    Madison station is a commuter rail stop in Madison, Connecticut, served by Shore Line East trains along the Northeast Corridor.
  • B. Racine station
    Racine station is a Chicago 'L' rapid transit stop on the Blue Line located in the Near West Side neighborhood of Chicago, Illinois.
  • C. Lemont station
    Lemont station is a commuter rail stop in Lemont, Illinois, served by Metra’s Heritage Corridor line between Chicago and Joliet.
  • D. Adams/Wabash station
    Adams/Wabash station is an elevated Chicago "L" train stop in the Loop, serving multiple lines in the heart of downtown Chicago.
  • E. St. Clair station
    St. Clair station is a Toronto Transit Commission subway station on Line 1 in midtown Toronto, serving the St. Clair Avenue and Yonge Street area with connections to streetcar and bus routes.
  • 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
Triple: [Washington/Wells station, replacedStation, Madison/Wells station]
Generated description
Madison/Wells station was a former elevated rapid transit stop on Chicago’s Loop ‘L’ that once served trains on the city’s downtown circuit.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Madison/Wells station
Target entity description: Madison/Wells station was a former elevated rapid transit stop on Chicago’s Loop ‘L’ that once served trains on the city’s downtown circuit.
  • A. Madison station
    Madison station is a commuter rail stop in Madison, Connecticut, served by Shore Line East trains along the Northeast Corridor.
  • B. Racine station
    Racine station is a Chicago 'L' rapid transit stop on the Blue Line located in the Near West Side neighborhood of Chicago, Illinois.
  • C. Lemont station
    Lemont station is a commuter rail stop in Lemont, Illinois, served by Metra’s Heritage Corridor line between Chicago and Joliet.
  • D. Adams/Wabash station
    Adams/Wabash station is an elevated Chicago "L" train stop in the Loop, serving multiple lines in the heart of downtown Chicago.
  • E. St. Clair station
    St. Clair station is a Toronto Transit Commission subway station on Line 1 in midtown Toronto, serving the St. Clair Avenue and Yonge Street area with connections to streetcar and bus routes.
  • 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_69c6883ab1008190a07129ff06f625d9 completed March 27, 2026, 1:38 p.m.
NER Named-entity recognition batch_69c6d9dda4108190a79a7841b0658a4d completed March 27, 2026, 7:26 p.m.
NED1 Entity disambiguation (via context triple) batch_69c7584fa7208190a0c5338e20518578 completed March 28, 2026, 4:25 a.m.
NEDg Description generation batch_69c75a417b7481908846a53712ea2323 completed March 28, 2026, 4:34 a.m.
NED2 Entity disambiguation (via description) batch_69c75abf8de881908e1ae0a46da795bc completed March 28, 2026, 4:36 a.m.
Created at: March 27, 2026, 2:26 p.m.