Triple

T15469468
Position Surface form Disambiguated ID Type / Status
Subject Kedzie E372118 entity
Predicate servesCorridor P2566 FINISHED
Object Cermak Branch of Pink Line
The Cermak Branch of the Pink Line is a rapid transit route on Chicago’s 'L' system that runs through the city’s West Side and Lower West Side neighborhoods, connecting them to the Loop.
 E1158702 NE FINISHED

Named-entity recognition

Before disambiguation, gpt-5-mini classified whether the object phrase is a named entity — the step behind the object's NE type shown above.

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: Cermak Branch of Pink Line | Statement: [Kedzie, servesCorridor, Cermak Branch of Pink Line]

Disambiguation candidates (2 decisions)

The exact options the model was shown at each disambiguation step, with the option it chose highlighted — the evidence behind this triple's disambiguated ids.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Cermak Branch of Pink Line
Context triple: [Kedzie, servesCorridor, Cermak Branch of Pink Line]
  • A. 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.
  • B. 54th/Cermak station
    54th/Cermak station is a Chicago 'L' rapid transit stop in Cicero, Illinois, serving as the western terminal of the CTA Pink Line.
  • C. South Chicago Branch of Metra Electric District
    The South Chicago Branch of Metra Electric District is a commuter rail line on Chicago’s South Side that provides electric train service between downtown Chicago and the South Chicago neighborhood.
  • D. Oak Park station (Blue Line)
    Oak Park station (Blue Line) is an elevated Chicago Transit Authority rapid transit stop in Oak Park, Illinois, serving the Forest Park branch of the Blue Line.
  • E. Irving Park (Brown Line)
    Irving Park (Brown Line) is an elevated Chicago 'L' rapid transit station on the city's North Side serving the CTA Brown Line.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Cermak Branch of Pink Line
Target entity description: The Cermak Branch of the Pink Line is a rapid transit route on Chicago’s 'L' system that runs through the city’s West Side and Lower West Side neighborhoods, connecting them to the Loop.
  • A. 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.
  • B. 54th/Cermak station
    54th/Cermak station is a Chicago 'L' rapid transit stop in Cicero, Illinois, serving as the western terminal of the CTA Pink Line.
  • C. South Chicago Branch of Metra Electric District
    The South Chicago Branch of Metra Electric District is a commuter rail line on Chicago’s South Side that provides electric train service between downtown Chicago and the South Chicago neighborhood.
  • D. Oak Park station (Blue Line)
    Oak Park station (Blue Line) is an elevated Chicago Transit Authority rapid transit stop in Oak Park, Illinois, serving the Forest Park branch of the Blue Line.
  • E. Irving Park (Brown Line)
    Irving Park (Brown Line) is an elevated Chicago 'L' rapid transit station on the city's North Side serving the CTA Brown Line.
  • F. None of above. chosen

How the object was described

The object's one-sentence description was generated by prompting gpt-5.1 with the object name and this triple as context.

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: Cermak Branch of Pink Line
Triple: [Kedzie, servesCorridor, Cermak Branch of Pink Line]
Generated description
The Cermak Branch of the Pink Line is a rapid transit route on Chicago’s 'L' system that runs through the city’s West Side and Lower West Side neighborhoods, connecting them to the Loop.

Provenance (5 batches)

Stage Batch ID Job type Status
creating batch_69d85cc8bd308190886949510b42e764 elicitation completed
NER batch_69e03f6b49788190b270fdfe92646842 ner completed
NED1 batch_69ff2d03845c8190bc8cb96827a5da39 ned_source_triple completed
NED2 batch_69ff2ec231dc8190b82333e3e54ced20 ned_description completed
NEDg batch_69ff2e2fb3e48190b2274d54586b1f00 nedg completed
Created at: April 10, 2026, 3:33 a.m.