Triple

T11600839
Position Surface form Disambiguated ID Type / Status
Subject Olympia Fields, Illinois E275123 entity
Predicate servedByStation P726 FINISHED
Object Olympia Fields station
Olympia Fields station is a commuter rail stop on Metra’s Electric District line in Olympia Fields, Illinois, providing suburban rail service to and from Chicago.
 E939942 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: Olympia Fields station | Statement: [Olympia Fields, Illinois, servedByStation, Olympia Fields station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Olympia Fields station
Context triple: [Olympia Fields, Illinois, servedByStation, Olympia Fields station]
  • A. Emerson Park station
    Emerson Park station is a light rail stop on the St. Louis MetroLink system serving the Emerson Park neighborhood in East St. Louis, Illinois.
  • B. 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.
  • C. Ferndale station
    Ferndale station is a Baltimore Light Rail stop serving the Ferndale area of Glen Burnie, Maryland.
  • D. Meadow Woods station
    Meadow Woods station is a commuter rail stop in the Orlando, Florida area served by the SunRail regional rail system.
  • E. 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.
  • 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: Olympia Fields station
Triple: [Olympia Fields, Illinois, servedByStation, Olympia Fields station]
Generated description
Olympia Fields station is a commuter rail stop on Metra’s Electric District line in Olympia Fields, Illinois, providing suburban rail service to and from Chicago.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Olympia Fields station
Target entity description: Olympia Fields station is a commuter rail stop on Metra’s Electric District line in Olympia Fields, Illinois, providing suburban rail service to and from Chicago.
  • A. Emerson Park station
    Emerson Park station is a light rail stop on the St. Louis MetroLink system serving the Emerson Park neighborhood in East St. Louis, Illinois.
  • B. 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.
  • C. Ferndale station
    Ferndale station is a Baltimore Light Rail stop serving the Ferndale area of Glen Burnie, Maryland.
  • D. Meadow Woods station
    Meadow Woods station is a commuter rail stop in the Orlando, Florida area served by the SunRail regional rail system.
  • E. 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.
  • 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_69d6aae6b14c81908dc5a74bad7591f9 completed April 8, 2026, 7:22 p.m.
NER Named-entity recognition batch_69d8954c3c248190bcccd4c7ff667b3a completed April 10, 2026, 6:14 a.m.
NED1 Entity disambiguation (via context triple) batch_69ef131cb534819099f9371c45c717c4 completed April 27, 2026, 7:41 a.m.
NEDg Description generation batch_69ef354b3b3c8190b1c91dbf9c705a7d completed April 27, 2026, 10:07 a.m.
NED2 Entity disambiguation (via description) batch_69ef5170ce9881908f2ecf3d5ada809a completed April 27, 2026, 12:07 p.m.
Created at: April 8, 2026, 9:38 p.m.