Triple

T3597647
Position Surface form Disambiguated ID Type / Status
Subject CTA Pink Line E76177 entity
Predicate terminus P388 FINISHED
Object 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.
 E379799 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: 54th/Cermak station | Statement: [CTA Pink Line, terminus, 54th/Cermak station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: 54th/Cermak station
Context triple: [CTA Pink Line, terminus, 54th/Cermak station]
  • A. Chicago/Franklin station (Chicago "L")
    Chicago/Franklin station was a former elevated rapid transit stop on Chicago’s "L" system that operated on the North Side main line near the city’s River North area.
  • B. Berwyn station (Chicago "L")
    Berwyn station is a Chicago "L" rapid transit stop on the Red Line located in the Edgewater neighborhood on the city's North Side.
  • C. Wilson station (Chicago "L")
    Wilson station is a Chicago "L" rapid transit stop in the Uptown neighborhood, serving the Red Line and acting as a key transfer and bus connection point on the city’s North Side.
  • D. Loyola station (Chicago "L")
    Loyola station is a Chicago "L" rapid transit stop on the Red Line located in the Rogers Park neighborhood on the city’s North Side.
  • E. Thorndale station (Chicago "L")
    Thorndale station is a Chicago "L" rapid transit stop on the Red Line located in the Edgewater neighborhood on the city’s North Side.
  • 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: 54th/Cermak station
Triple: [CTA Pink Line, terminus, 54th/Cermak station]
Generated description
54th/Cermak station is a Chicago 'L' rapid transit stop in Cicero, Illinois, serving as the western terminal of the CTA Pink Line.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: 54th/Cermak station
Target entity description: 54th/Cermak station is a Chicago 'L' rapid transit stop in Cicero, Illinois, serving as the western terminal of the CTA Pink Line.
  • A. Chicago/Franklin station (Chicago "L")
    Chicago/Franklin station was a former elevated rapid transit stop on Chicago’s "L" system that operated on the North Side main line near the city’s River North area.
  • B. Berwyn station (Chicago "L")
    Berwyn station is a Chicago "L" rapid transit stop on the Red Line located in the Edgewater neighborhood on the city's North Side.
  • C. Wilson station (Chicago "L")
    Wilson station is a Chicago "L" rapid transit stop in the Uptown neighborhood, serving the Red Line and acting as a key transfer and bus connection point on the city’s North Side.
  • D. Loyola station (Chicago "L")
    Loyola station is a Chicago "L" rapid transit stop on the Red Line located in the Rogers Park neighborhood on the city’s North Side.
  • E. Thorndale station (Chicago "L")
    Thorndale station is a Chicago "L" rapid transit stop on the Red Line located in the Edgewater neighborhood on the city’s North Side.
  • 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_69ad85d8042081908af94a04c410dec0 completed March 8, 2026, 2:21 p.m.
NER Named-entity recognition batch_69adc19c71608190a87c98214321214c completed March 8, 2026, 6:36 p.m.
NED1 Entity disambiguation (via context triple) batch_69b4c380abf0819091750970277352de completed March 14, 2026, 2:10 a.m.
NEDg Description generation batch_69b4c538184481908f6129332ed44215 completed March 14, 2026, 2:17 a.m.
NED2 Entity disambiguation (via description) batch_69b4c5a849bc819082fb472fb74c07e5 completed March 14, 2026, 2:19 a.m.
Created at: March 8, 2026, 3:22 p.m.