Triple

T15362891
Position Surface form Disambiguated ID Type / Status
Subject Red Line at Jackson E367333 entity
Predicate providesTransferTo P17241 FINISHED
Object Pink Line at Harold Washington Library–State/Van Buren via pedway
The Pink Line at Harold Washington Library–State/Van Buren via pedway is an elevated Chicago 'L' station in the Loop that connects riders to the Harold Washington Library and other downtown destinations.
E118621 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: Pink Line at Harold Washington Library–State/Van Buren via pedway | Statement: [Red Line at Jackson, providesTransferTo, Pink Line at Harold Washington Library–State/Van Buren via pedway]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Pink Line at Harold Washington Library–State/Van Buren via pedway
Context triple: [Red Line at Jackson, providesTransferTo, Pink Line at Harold Washington Library–State/Van Buren via pedway]
  • A. Harold Washington Library–State/Van Buren station
    Harold Washington Library–State/Van Buren station is a Chicago 'L' rapid transit stop in the Loop, serving multiple CTA lines and located adjacent to the Harold Washington Library Center.
  • B. Chicago Pedway system
    The Chicago Pedway system is an extensive network of underground and overhead pedestrian walkways in downtown Chicago that links major buildings, transit stations, and attractions, providing sheltered passage throughout the Loop.
  • C. Brown Line at Clark/Lake
    Brown Line at Clark/Lake is a Chicago 'L' rapid transit station stop on the Brown Line located within the major multi-line Clark/Lake station complex in downtown Chicago.
  • D. Ravenswood branch (Brown Line)
    The Ravenswood branch of Chicago's Brown Line is an elevated rapid transit route on the city's North Side, serving neighborhoods such as Lincoln Park, Lakeview, and Ravenswood and connecting them to the Loop.
  • E. Pink Line at Clark/Lake
    The Pink Line at Clark/Lake is a Chicago 'L' rapid transit service stop in the downtown Loop where Pink Line trains share the large multi-line Clark/Lake station complex.
  • 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: Pink Line at Harold Washington Library–State/Van Buren via pedway
Triple: [Red Line at Jackson, providesTransferTo, Pink Line at Harold Washington Library–State/Van Buren via pedway]
Generated description
The Pink Line at Harold Washington Library–State/Van Buren via pedway is an elevated Chicago 'L' station in the Loop that connects riders to the Harold Washington Library and other downtown destinations.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Pink Line at Harold Washington Library–State/Van Buren via pedway
Target entity description: The Pink Line at Harold Washington Library–State/Van Buren via pedway is an elevated Chicago 'L' station in the Loop that connects riders to the Harold Washington Library and other downtown destinations.
  • A. Harold Washington Library–State/Van Buren station chosen
    Harold Washington Library–State/Van Buren station is a Chicago 'L' rapid transit stop in the Loop, serving multiple CTA lines and located adjacent to the Harold Washington Library Center.
  • B. Chicago Pedway system
    The Chicago Pedway system is an extensive network of underground and overhead pedestrian walkways in downtown Chicago that links major buildings, transit stations, and attractions, providing sheltered passage throughout the Loop.
  • C. Brown Line at Clark/Lake
    Brown Line at Clark/Lake is a Chicago 'L' rapid transit station stop on the Brown Line located within the major multi-line Clark/Lake station complex in downtown Chicago.
  • D. Ravenswood branch (Brown Line)
    The Ravenswood branch of Chicago's Brown Line is an elevated rapid transit route on the city's North Side, serving neighborhoods such as Lincoln Park, Lakeview, and Ravenswood and connecting them to the Loop.
  • E. Pink Line at Clark/Lake
    The Pink Line at Clark/Lake is a Chicago 'L' rapid transit service stop in the downtown Loop where Pink Line trains share the large multi-line Clark/Lake station complex.
  • 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_69d85a1483788190ad93c2748e8af34b completed April 10, 2026, 2:01 a.m.
NER Named-entity recognition batch_69e03e479f188190bbbc3dcd73853e02 completed April 16, 2026, 1:41 a.m.
NED1 Entity disambiguation (via context triple) batch_69ff0b4a181c8190bffc1ac1a86e215d completed May 9, 2026, 10:24 a.m.
NEDg Description generation batch_69ff0f82441c81909a8ae13817fd3e96 completed May 9, 2026, 10:42 a.m.
NED2 Entity disambiguation (via description) batch_69ff0fd586708190a54b33efd27d84b2 completed May 9, 2026, 10:43 a.m.
Created at: April 10, 2026, 3:18 a.m.