Triple

T2254876
Position Surface form Disambiguated ID Type / Status
Subject Northwestern Elevated Railroad E49697 entity
Predicate servedStation P726 FINISHED
Object Fullerton station (Chicago "L")
Fullerton station is a major Chicago "L" rapid transit stop on the city's North Side, serving multiple lines and acting as a key transfer point for commuters and students near DePaul University.
 E257724 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: Fullerton station (Chicago "L") | Statement: [Northwestern Elevated Railroad, servedStation, Fullerton station (Chicago "L")]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Fullerton station (Chicago "L")
Context triple: [Northwestern Elevated Railroad, servedStation, Fullerton station (Chicago "L")]
  • A. 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.
  • B. 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.
  • C. 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.
  • D. Pulaski station (CTA Orange Line)
    Pulaski station (CTA Orange Line) is an elevated rapid transit stop on Chicago’s Orange Line serving the West Elsdon neighborhood near Midway Airport.
  • E. Oak Forest station
    Oak Forest station is a commuter rail stop in Oak Forest, Illinois, serving Metra's Rock Island District line between Chicago and its southwestern suburbs.
  • 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: Fullerton station (Chicago "L")
Triple: [Northwestern Elevated Railroad, servedStation, Fullerton station (Chicago "L")]
Generated description
Fullerton station is a major Chicago "L" rapid transit stop on the city's North Side, serving multiple lines and acting as a key transfer point for commuters and students near DePaul University.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Fullerton station (Chicago "L")
Target entity description: Fullerton station is a major Chicago "L" rapid transit stop on the city's North Side, serving multiple lines and acting as a key transfer point for commuters and students near DePaul University.
  • A. 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.
  • B. 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.
  • C. 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.
  • D. Pulaski station (CTA Orange Line)
    Pulaski station (CTA Orange Line) is an elevated rapid transit stop on Chicago’s Orange Line serving the West Elsdon neighborhood near Midway Airport.
  • E. Oak Forest station
    Oak Forest station is a commuter rail stop in Oak Forest, Illinois, serving Metra's Rock Island District line between Chicago and its southwestern suburbs.
  • 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_69a88aaa9250819095e127d0d77e8a32 completed March 4, 2026, 7:40 p.m.
NER Named-entity recognition batch_69abc121af78819085b2e601d2f9bcdf completed March 7, 2026, 6:09 a.m.
NED1 Entity disambiguation (via context triple) batch_69ae96021324819088eafcaf06f97455 completed March 9, 2026, 9:42 a.m.
NEDg Description generation batch_69ae96d95c648190bca59f97c01e59fc completed March 9, 2026, 9:46 a.m.
NED2 Entity disambiguation (via description) batch_69ae974d062c819091459361f519ee3e completed March 9, 2026, 9:47 a.m.
Created at: March 4, 2026, 7:47 p.m.