Triple

T15853703
Position Surface form Disambiguated ID Type / Status
Subject Red Line southbound E384401 entity
Predicate servesStation P839 FINISHED
Object Garfield station (Red Line)
Garfield station (Red Line) is a Chicago 'L' rapid transit station on the Red Line located in the city's South Side, serving local commuters and connecting them to downtown and other parts of Chicago.
 E1183845 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: Garfield station (Red Line) | Statement: [Red Line southbound, servesStation, Garfield station (Red Line)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Garfield station (Red Line)
Context triple: [Red Line southbound, servesStation, Garfield station (Red Line)]
  • A. Garfield Boulevard Green Line station
    Garfield Boulevard Green Line station is a Chicago Transit Authority elevated train stop on the Green Line serving the Washington Park neighborhood on the South Side of Chicago.
  • B. Grand station (Red Line)
    Grand station (Red Line) is a Chicago 'L' rapid transit station on the Red Line located in the city's Near North Side, serving the busy River North and Magnificent Mile areas.
  • C. Howard station (CTA Red Line)
    Howard station (CTA Red Line) is a major Chicago Transit Authority rail terminal on the city’s North Side that serves as an interchange between the Red, Purple, and Yellow Lines.
  • D. Belmont station (CTA Red Line)
    Belmont station (CTA Red Line) is a major Chicago 'L' rapid transit hub in the Lakeview neighborhood where the Red, Brown, and Purple Lines converge.
  • E. Addison station (CTA Red Line)
    Addison station (CTA Red Line) is a Chicago 'L' rapid transit stop on the Red Line located in the Lakeview neighborhood, best known for serving fans attending games and events at nearby Wrigley Field.
  • 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: Garfield station (Red Line)
Triple: [Red Line southbound, servesStation, Garfield station (Red Line)]
Generated description
Garfield station (Red Line) is a Chicago 'L' rapid transit station on the Red Line located in the city's South Side, serving local commuters and connecting them to downtown and other parts of Chicago.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Garfield station (Red Line)
Target entity description: Garfield station (Red Line) is a Chicago 'L' rapid transit station on the Red Line located in the city's South Side, serving local commuters and connecting them to downtown and other parts of Chicago.
  • A. Garfield Boulevard Green Line station
    Garfield Boulevard Green Line station is a Chicago Transit Authority elevated train stop on the Green Line serving the Washington Park neighborhood on the South Side of Chicago.
  • B. Grand station (Red Line)
    Grand station (Red Line) is a Chicago 'L' rapid transit station on the Red Line located in the city's Near North Side, serving the busy River North and Magnificent Mile areas.
  • C. Howard station (CTA Red Line)
    Howard station (CTA Red Line) is a major Chicago Transit Authority rail terminal on the city’s North Side that serves as an interchange between the Red, Purple, and Yellow Lines.
  • D. Belmont station (CTA Red Line)
    Belmont station (CTA Red Line) is a major Chicago 'L' rapid transit hub in the Lakeview neighborhood where the Red, Brown, and Purple Lines converge.
  • E. Addison station (CTA Red Line)
    Addison station (CTA Red Line) is a Chicago 'L' rapid transit stop on the Red Line located in the Lakeview neighborhood, best known for serving fans attending games and events at nearby Wrigley Field.
  • 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_69d86da422088190aac39e32e6c68429 completed April 10, 2026, 3:25 a.m.
NER Named-entity recognition batch_69e14cae96648190884a85f68b6e9fe1 completed April 16, 2026, 8:55 p.m.
NED1 Entity disambiguation (via context triple) batch_69ffb59bc1f881908c5ed93039e94a46 completed May 9, 2026, 10:30 p.m.
NEDg Description generation batch_69ffb6484d5c81908230dfd4a473159e completed May 9, 2026, 10:33 p.m.
NED2 Entity disambiguation (via description) batch_69ffb6a8fef08190b4b3b5c46f6916ef completed May 9, 2026, 10:35 p.m.
Created at: April 10, 2026, 4:50 a.m.