Triple

T15362889
Position Surface form Disambiguated ID Type / Status
Subject Red Line at Jackson E367333 entity
Predicate providesTransferTo P17241 FINISHED
Object Brown Line at State/Lake via pedway
Brown Line at State/Lake via pedway is a Chicago 'L' rapid transit station on the Brown Line, accessible from the State/Lake stop through an underground pedestrian walkway.
 E1153725 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: Brown Line at State/Lake via pedway | Statement: [Red Line at Jackson, providesTransferTo, Brown Line at State/Lake via pedway]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Brown Line at State/Lake via pedway
Context triple: [Red Line at Jackson, providesTransferTo, Brown Line at State/Lake via pedway]
  • A. 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.
  • B. Orange Line at Clark/Lake
    The Orange Line at Clark/Lake is a Chicago 'L' rapid transit route serving the Loop and Midway Airport, intersecting multiple CTA lines at the busy Clark/Lake station.
  • C. Blue Line at Clark/Lake
    The Blue Line at Clark/Lake is a major Chicago 'L' rapid transit stop in the Loop, serving the Blue Line within the large Clark/Lake station complex.
  • D. 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.
  • E. Green Line at Clark/Lake
    The Green Line at Clark/Lake is a major Chicago 'L' station in the Loop where Green Line trains share a busy downtown transfer hub with multiple other CTA rail lines.
  • 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: Brown Line at State/Lake via pedway
Triple: [Red Line at Jackson, providesTransferTo, Brown Line at State/Lake via pedway]
Generated description
Brown Line at State/Lake via pedway is a Chicago 'L' rapid transit station on the Brown Line, accessible from the State/Lake stop through an underground pedestrian walkway.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Brown Line at State/Lake via pedway
Target entity description: Brown Line at State/Lake via pedway is a Chicago 'L' rapid transit station on the Brown Line, accessible from the State/Lake stop through an underground pedestrian walkway.
  • A. 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.
  • B. Orange Line at Clark/Lake
    The Orange Line at Clark/Lake is a Chicago 'L' rapid transit route serving the Loop and Midway Airport, intersecting multiple CTA lines at the busy Clark/Lake station.
  • C. Blue Line at Clark/Lake
    The Blue Line at Clark/Lake is a major Chicago 'L' rapid transit stop in the Loop, serving the Blue Line within the large Clark/Lake station complex.
  • D. 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.
  • E. Green Line at Clark/Lake
    The Green Line at Clark/Lake is a major Chicago 'L' station in the Loop where Green Line trains share a busy downtown transfer hub with multiple other CTA rail lines.
  • 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_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.