Triple

T3556883
Position Surface form Disambiguated ID Type / Status
Subject CTA Brown Line E75239 entity
Predicate hasStation P35 FINISHED
Object 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.
 E370921 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: Irving Park (Brown Line) | Statement: [CTA Brown Line, hasStation, Irving Park (Brown Line)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Irving Park (Brown Line)
Context triple: [CTA Brown Line, hasStation, Irving Park (Brown Line)]
  • A. Montrose (Brown Line)
    Montrose is an elevated Chicago 'L' rapid transit station on the Brown Line serving the North Center neighborhood.
  • B. 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.
  • C. 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.
  • D. 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.
  • E. Clark/Lake station (CTA)
    Clark/Lake station (CTA) is a major elevated and subway transfer station in downtown Chicago’s Loop, serving multiple Chicago 'L' lines and providing convenient access to nearby civic and commercial destinations.
  • 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: Irving Park (Brown Line)
Triple: [CTA Brown Line, hasStation, Irving Park (Brown Line)]
Generated description
Irving Park (Brown Line) is an elevated Chicago 'L' rapid transit station on the city's North Side serving the CTA Brown Line.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Irving Park (Brown Line)
Target entity description: Irving Park (Brown Line) is an elevated Chicago 'L' rapid transit station on the city's North Side serving the CTA Brown Line.
  • A. Montrose (Brown Line)
    Montrose is an elevated Chicago 'L' rapid transit station on the Brown Line serving the North Center neighborhood.
  • B. 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.
  • C. 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.
  • D. 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.
  • E. Clark/Lake station (CTA)
    Clark/Lake station (CTA) is a major elevated and subway transfer station in downtown Chicago’s Loop, serving multiple Chicago 'L' lines and providing convenient access to nearby civic and commercial destinations.
  • 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_69ad85d45090819086f34fb85d850a1e completed March 8, 2026, 2:21 p.m.
NER Named-entity recognition batch_69adc057cc788190a6c4f3781f43abce completed March 8, 2026, 6:30 p.m.
NED1 Entity disambiguation (via context triple) batch_69b402e41b8c8190b6221725c7a84532 completed March 13, 2026, 12:28 p.m.
NEDg Description generation batch_69b406af1ed88190884541ee1671cabd completed March 13, 2026, 12:44 p.m.
NED2 Entity disambiguation (via description) batch_69b4086ab034819086c5fa7d4b172d75 completed March 13, 2026, 12:51 p.m.
Created at: March 8, 2026, 3:20 p.m.