Triple

T12064939
Position Surface form Disambiguated ID Type / Status
Subject Loyola station (Chicago "L") E287269 entity
Predicate category P87 FINISHED
Object Red Line (CTA) stations
Red Line (CTA) stations are the train stops along Chicago's busiest rapid transit route, running north–south through the city and serving key neighborhoods and destinations.
 E963841 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: Red Line (CTA) stations | Statement: [Loyola station (Chicago "L"), category, Red Line (CTA) stations]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Red Line (CTA) stations
Context triple: [Loyola station (Chicago "L"), category, Red Line (CTA) stations]
  • A. 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.
  • B. 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.
  • C. Western (Brown Line) station
    Western (Brown Line) station is an elevated Chicago 'L' rapid transit stop on the city's Brown Line, serving the Lincoln Square neighborhood on Chicago's North Side.
  • 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. Central station (CTA Purple Line)
    Central station is a Chicago Transit Authority 'L' rapid transit stop on the Purple Line located in Evanston, Illinois.
  • 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: Red Line (CTA) stations
Triple: [Loyola station (Chicago "L"), category, Red Line (CTA) stations]
Generated description
Red Line (CTA) stations are the train stops along Chicago's busiest rapid transit route, running north–south through the city and serving key neighborhoods and destinations.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Red Line (CTA) stations
Target entity description: Red Line (CTA) stations are the train stops along Chicago's busiest rapid transit route, running north–south through the city and serving key neighborhoods and destinations.
  • A. 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.
  • B. 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.
  • C. Western (Brown Line) station
    Western (Brown Line) station is an elevated Chicago 'L' rapid transit stop on the city's Brown Line, serving the Lincoln Square neighborhood on Chicago's North Side.
  • 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. Central station (CTA Purple Line)
    Central station is a Chicago Transit Authority 'L' rapid transit stop on the Purple Line located in Evanston, Illinois.
  • 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_69d6ab4846e081908ee7bbd66a6d3459 completed April 8, 2026, 7:23 p.m.
NER Named-entity recognition batch_69d90440dd988190ae2b80367aceb6f7 completed April 10, 2026, 2:08 p.m.
NED1 Entity disambiguation (via context triple) batch_69f5f656f4f481909a1ecac3f89da374 completed May 2, 2026, 1:04 p.m.
NEDg Description generation batch_69f5fed2d57881908103ce89a365cdd4 completed May 2, 2026, 1:40 p.m.
NED2 Entity disambiguation (via description) batch_69f600bcaf288190b6204f985d3be638 completed May 2, 2026, 1:48 p.m.
Created at: April 8, 2026, 9:48 p.m.