Triple

T4241828
Position Surface form Disambiguated ID Type / Status
Subject North Central Service E95430 entity
Predicate hasStation P35 FINISHED
Object Schiller Park station
Schiller Park station is a commuter rail stop in Schiller Park, Illinois, serving Metra’s North Central Service line in the Chicago metropolitan area.
 E471809 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: Schiller Park station | Statement: [North Central Service, hasStation, Schiller Park station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Schiller Park station
Context triple: [North Central Service, hasStation, Schiller Park station]
  • A. Memorial Park station
    Memorial Park station is a light rail station on the Los Angeles Metro A Line serving the Old Pasadena area in Pasadena, California.
  • B. Leimert Park station
    Leimert Park station is a Los Angeles Metro Rail station on the K Line serving the historic Leimert Park neighborhood in South Los Angeles.
  • C. Forest Park station
    Forest Park station is a Chicago Transit Authority rapid transit station in Forest Park, Illinois, serving as the western endpoint of the Blue Line.
  • D. Metropark station
    Metropark station is a major New Jersey Transit and Amtrak rail station in Iselin, New Jersey, serving as a key commuter and intercity transportation hub on the Northeast Corridor.
  • E. Hegewisch station
    Hegewisch station is a commuter rail stop in Chicago’s Hegewisch neighborhood that serves both the South Shore Line and Metra Electric District, connecting the city with northwest Indiana.
  • 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: Schiller Park station
Triple: [North Central Service, hasStation, Schiller Park station]
Generated description
Schiller Park station is a commuter rail stop in Schiller Park, Illinois, serving Metra’s North Central Service line in the Chicago metropolitan area.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Schiller Park station
Target entity description: Schiller Park station is a commuter rail stop in Schiller Park, Illinois, serving Metra’s North Central Service line in the Chicago metropolitan area.
  • A. Memorial Park station
    Memorial Park station is a light rail station on the Los Angeles Metro A Line serving the Old Pasadena area in Pasadena, California.
  • B. Leimert Park station
    Leimert Park station is a Los Angeles Metro Rail station on the K Line serving the historic Leimert Park neighborhood in South Los Angeles.
  • C. Forest Park station
    Forest Park station is a Chicago Transit Authority rapid transit station in Forest Park, Illinois, serving as the western endpoint of the Blue Line.
  • D. Metropark station
    Metropark station is a major New Jersey Transit and Amtrak rail station in Iselin, New Jersey, serving as a key commuter and intercity transportation hub on the Northeast Corridor.
  • E. Hegewisch station
    Hegewisch station is a commuter rail stop in Chicago’s Hegewisch neighborhood that serves both the South Shore Line and Metra Electric District, connecting the city with northwest Indiana.
  • 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_69b3453d91548190b4d4ef8fe52aa2ac completed March 12, 2026, 10:59 p.m.
NER Named-entity recognition batch_69b34e891bc08190831187da4f553f48 completed March 12, 2026, 11:38 p.m.
NED1 Entity disambiguation (via context triple) batch_69be4d60ae3c8190aea53073a37d0c07 completed March 21, 2026, 7:48 a.m.
NEDg Description generation batch_69be4f483e5c8190a568a8acc19aefe3 completed March 21, 2026, 7:56 a.m.
NED2 Entity disambiguation (via description) batch_69be4fa1037881908e926df651aec812 completed March 21, 2026, 7:58 a.m.
Created at: March 12, 2026, 11:05 p.m.