Triple

T15362569
Position Surface form Disambiguated ID Type / Status
Subject Division E367323 entity
Predicate hasSignage P5950 FINISHED
Object CTA standard Blue Line signage
CTA standard Blue Line signage is the consistent visual wayfinding system used across Chicago Transit Authority’s Blue Line stations, featuring the line’s distinctive color and typography to guide riders.
E1153715 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: CTA standard Blue Line signage | Statement: [Division, hasSignage, CTA standard Blue Line signage]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: CTA standard Blue Line signage
Context triple: [Division, hasSignage, CTA standard Blue Line signage]
  • A. MAX Blue Line
    MAX Blue Line is a light rail service in the Portland, Oregon metropolitan area that connects downtown Portland with eastern and western suburbs as part of the region’s MAX Light Rail system.
  • B. CTA Yellow Line
    The CTA Yellow Line, also known as the Skokie Swift, is a short Chicago Transit Authority rapid transit route that runs between Howard on the North Side and Skokie, Illinois.
  • C. Division station (CTA Blue Line)
    Division station (CTA Blue Line) is a Chicago 'L' subway station on the Blue Line serving the Wicker Park neighborhood.
  • D. Blue Line is colored blue
    Blue Line is colored blue is a subway line in Boston’s public transit system, commonly identified by its blue color on maps and signage.
  • E. CTA Purple Line
    The CTA Purple Line is a rapid transit route in Chicago’s ‘L’ system that primarily serves the northern suburbs and provides express service to downtown during weekday rush hours.
  • 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: CTA standard Blue Line signage
Triple: [Division, hasSignage, CTA standard Blue Line signage]
Generated description
CTA standard Blue Line signage is the consistent visual wayfinding system used across Chicago Transit Authority’s Blue Line stations, featuring the line’s distinctive color and typography to guide riders.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: CTA standard Blue Line signage
Target entity description: CTA standard Blue Line signage is the consistent visual wayfinding system used across Chicago Transit Authority’s Blue Line stations, featuring the line’s distinctive color and typography to guide riders.
  • A. MAX Blue Line
    MAX Blue Line is a light rail service in the Portland, Oregon metropolitan area that connects downtown Portland with eastern and western suburbs as part of the region’s MAX Light Rail system.
  • B. CTA Yellow Line
    The CTA Yellow Line, also known as the Skokie Swift, is a short Chicago Transit Authority rapid transit route that runs between Howard on the North Side and Skokie, Illinois.
  • C. Division station (CTA Blue Line)
    Division station (CTA Blue Line) is a Chicago 'L' subway station on the Blue Line serving the Wicker Park neighborhood.
  • D. Blue Line is colored blue
    Blue Line is colored blue is a subway line in Boston’s public transit system, commonly identified by its blue color on maps and signage.
  • E. CTA Purple Line
    The CTA Purple Line is a rapid transit route in Chicago’s ‘L’ system that primarily serves the northern suburbs and provides express service to downtown during weekday rush hours.
  • 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.