Triple

T11902171
Position Surface form Disambiguated ID Type / Status
Subject Thorndale station (Chicago "L") E283177 entity
Predicate isPartOfCorridor P35 FINISHED
Object Howard–95th/Dan Ryan Red Line corridor
The Howard–95th/Dan Ryan Red Line corridor is the primary north–south rapid transit route of Chicago’s "L" system, running from Howard on the North Side through downtown to 95th/Dan Ryan on the South Side.
E953744 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: Howard–95th/Dan Ryan Red Line corridor | Statement: [Thorndale station (Chicago "L"), isPartOfCorridor, Howard–95th/Dan Ryan Red Line corridor]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Howard–95th/Dan Ryan Red Line corridor
Context triple: [Thorndale station (Chicago "L"), isPartOfCorridor, Howard–95th/Dan Ryan Red Line corridor]
  • A. Red Line Northwest Extension corridor
    The Red Line Northwest Extension corridor is a planned expansion route of Boston's MBTA Red Line intended to extend rapid transit service northwest from its current terminus.
  • B. Red Line northwest branch
    The Red Line northwest branch is a planned rapid transit extension serving the northwestern suburbs as part of the Red Line’s expanded corridor.
  • C. Fourth Avenue Line
    The Fourth Avenue Line is a major New York City Subway trunk line in Brooklyn that carries several services, including the N train, along a north–south corridor.
  • D. Monroe (Red Line)
    Monroe (Red Line) is a Chicago 'L' rapid transit station in the Loop located in the median of State Street and served by the Red Line.
  • E. Green Line light rail corridor
    The Green Line light rail corridor is a major transit route in the Minneapolis–Saint Paul metropolitan area that connects downtown Minneapolis and downtown St. Paul, running through several neighborhoods and commercial districts along the way.
  • 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: Howard–95th/Dan Ryan Red Line corridor
Triple: [Thorndale station (Chicago "L"), isPartOfCorridor, Howard–95th/Dan Ryan Red Line corridor]
Generated description
The Howard–95th/Dan Ryan Red Line corridor is the primary north–south rapid transit route of Chicago’s "L" system, running from Howard on the North Side through downtown to 95th/Dan Ryan on the South Side.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Howard–95th/Dan Ryan Red Line corridor
Target entity description: The Howard–95th/Dan Ryan Red Line corridor is the primary north–south rapid transit route of Chicago’s "L" system, running from Howard on the North Side through downtown to 95th/Dan Ryan on the South Side.
  • A. Red Line Northwest Extension corridor
    The Red Line Northwest Extension corridor is a planned expansion route of Boston's MBTA Red Line intended to extend rapid transit service northwest from its current terminus.
  • B. Red Line northwest branch
    The Red Line northwest branch is a planned rapid transit extension serving the northwestern suburbs as part of the Red Line’s expanded corridor.
  • C. Fourth Avenue Line
    The Fourth Avenue Line is a major New York City Subway trunk line in Brooklyn that carries several services, including the N train, along a north–south corridor.
  • D. Monroe (Red Line)
    Monroe (Red Line) is a Chicago 'L' rapid transit station in the Loop located in the median of State Street and served by the Red Line.
  • E. Green Line light rail corridor
    The Green Line light rail corridor is a major transit route in the Minneapolis–Saint Paul metropolitan area that connects downtown Minneapolis and downtown St. Paul, running through several neighborhoods and commercial districts along the way.
  • 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_69d6ab2c07e88190ba13b0d21fd6cf33 completed April 8, 2026, 7:23 p.m.
NER Named-entity recognition batch_69d8dd1792648190853f15fbf217eebd completed April 10, 2026, 11:20 a.m.
NED1 Entity disambiguation (via context triple) batch_69f4183d29b081908cfbf4d91a365681 completed May 1, 2026, 3:04 a.m.
NEDg Description generation batch_69f41f1d2da0819082f00cf61a6530b6 completed May 1, 2026, 3:33 a.m.
NED2 Entity disambiguation (via description) batch_69f4228a73708190a6d2db321e175921 completed May 1, 2026, 3:48 a.m.
Created at: April 8, 2026, 9:44 p.m.