Triple

T6472399
Position Surface form Disambiguated ID Type / Status
Subject Metra SouthWest Service E145985 entity
Predicate usesStation P726 FINISHED
Object 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.
 E598322 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: Palos Heights station | Statement: [Metra SouthWest Service, usesStation, Palos Heights station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Palos Heights station
Context triple: [Metra SouthWest Service, usesStation, Palos Heights station]
  • A. Glenview station
    Glenview station is a commuter rail station in Glenview, Illinois, serving as a stop for Metra and Amtrak trains in the Chicago metropolitan area.
  • B. Glen Ellyn station
    Glen Ellyn station is a commuter rail stop in Glen Ellyn, Illinois, served by Metra's Union Pacific/West Line connecting the suburb to downtown Chicago.
  • C. Vernon Hills station
    Vernon Hills station is a commuter rail stop in Vernon Hills, Illinois, served by Metra’s North Central Service line connecting the northern suburbs to downtown Chicago.
  • 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. 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.
  • 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: Palos Heights station
Triple: [Metra SouthWest Service, usesStation, Palos Heights station]
Generated description
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.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Palos Heights station
Target entity description: 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.
  • A. Glenview station
    Glenview station is a commuter rail station in Glenview, Illinois, serving as a stop for Metra and Amtrak trains in the Chicago metropolitan area.
  • B. Glen Ellyn station
    Glen Ellyn station is a commuter rail stop in Glen Ellyn, Illinois, served by Metra's Union Pacific/West Line connecting the suburb to downtown Chicago.
  • C. Vernon Hills station
    Vernon Hills station is a commuter rail stop in Vernon Hills, Illinois, served by Metra’s North Central Service line connecting the northern suburbs to downtown Chicago.
  • 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. 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.
  • 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_69c008fec7408190af7b146dc63d9750 completed March 22, 2026, 3:21 p.m.
NER Named-entity recognition batch_69c06a3188488190a1b7452ede91ba5e completed March 22, 2026, 10:16 p.m.
NED1 Entity disambiguation (via context triple) batch_69c669e06d088190baf3b220bd3bc56c completed March 27, 2026, 11:28 a.m.
NEDg Description generation batch_69c670d1f55081909b53da5fc57f516e completed March 27, 2026, 11:58 a.m.
NED2 Entity disambiguation (via description) batch_69c67161e2e88190918e03f88e88508f completed March 27, 2026, noon
Created at: March 22, 2026, 4:50 p.m.