Triple

T7172746
Position Surface form Disambiguated ID Type / Status
Subject Elmwood Park, Illinois E167241 entity
Predicate hasRailStation P726 FINISHED
Object Elmwood Park station
Elmwood Park station is a commuter rail stop in Elmwood Park, Illinois, serving passengers on Metra’s Milwaukee District/West Line in the Chicago metropolitan area.
 E648618 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: Elmwood Park station | Statement: [Elmwood Park, Illinois, hasRailStation, Elmwood Park station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Elmwood Park station
Context triple: [Elmwood Park, Illinois, hasRailStation, Elmwood Park station]
  • A. Elmhurst station
    Elmhurst station is a commuter rail stop in Elmhurst, Illinois, on Metra's Union Pacific West Line serving passengers traveling between the western suburbs and downtown Chicago.
  • B. River Grove station
    River Grove station is a commuter rail stop in River Grove, Illinois, served by Metra’s North Central Service line in the Chicago metropolitan area.
  • C. Park Ridge station
    Park Ridge station is a New Jersey Transit commuter rail stop in Park Ridge, New Jersey, serving passengers on the Pascack Valley Line.
  • D. Park Ridge station
    Park Ridge station is a commuter rail stop in Park Ridge, Illinois, serving Metra trains that connect the suburb with Chicago and surrounding areas.
  • E. Palos Heights station
    Palos Heights station is a commuter rail stop in Palos Heights, Illinois, serving passengers on Metra’s SouthWest Service 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: Elmwood Park station
Triple: [Elmwood Park, Illinois, hasRailStation, Elmwood Park station]
Generated description
Elmwood Park station is a commuter rail stop in Elmwood Park, Illinois, serving passengers on Metra’s Milwaukee District/West Line in the Chicago metropolitan area.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Elmwood Park station
Target entity description: Elmwood Park station is a commuter rail stop in Elmwood Park, Illinois, serving passengers on Metra’s Milwaukee District/West Line in the Chicago metropolitan area.
  • A. Elmhurst station
    Elmhurst station is a commuter rail stop in Elmhurst, Illinois, on Metra's Union Pacific West Line serving passengers traveling between the western suburbs and downtown Chicago.
  • B. River Grove station
    River Grove station is a commuter rail stop in River Grove, Illinois, served by Metra’s North Central Service line in the Chicago metropolitan area.
  • C. Park Ridge station
    Park Ridge station is a New Jersey Transit commuter rail stop in Park Ridge, New Jersey, serving passengers on the Pascack Valley Line.
  • D. Park Ridge station
    Park Ridge station is a commuter rail stop in Park Ridge, Illinois, serving Metra trains that connect the suburb with Chicago and surrounding areas.
  • E. Palos Heights station
    Palos Heights station is a commuter rail stop in Palos Heights, Illinois, serving passengers on Metra’s SouthWest Service 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_69c68889a2748190a316c5e65360361a completed March 27, 2026, 1:39 p.m.
NER Named-entity recognition batch_69c6e88b0a448190a19bd2d9e2a310a4 completed March 27, 2026, 8:28 p.m.
NED1 Entity disambiguation (via context triple) batch_69c7bf8766508190945a96f9536135ef completed March 28, 2026, 11:46 a.m.
NEDg Description generation batch_69c7c039bb708190b4ac14e19974774a completed March 28, 2026, 11:49 a.m.
NED2 Entity disambiguation (via description) batch_69c7c123c4b48190a76fb869f7abc553 completed March 28, 2026, 11:53 a.m.
Created at: March 27, 2026, 2:48 p.m.