Triple

T7842113
Position Surface form Disambiguated ID Type / Status
Subject Deerfield, Illinois E181830 entity
Predicate hasRailStation P726 FINISHED
Object Lake Cook Road station
Lake Cook Road station is a Metra commuter rail station serving the northern suburbs of Chicago, located near Deerfield, Illinois.
 E698508 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: Lake Cook Road station | Statement: [Deerfield, Illinois, hasRailStation, Lake Cook Road station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Lake Cook Road station
Context triple: [Deerfield, Illinois, hasRailStation, Lake Cook Road station]
  • A. Chicago Ridge station
    Chicago Ridge station is a commuter rail stop in Chicago Ridge, Illinois, serving passengers on Metra’s SouthWest Service line between Chicago and its southwestern suburbs.
  • 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. Lake Forest station
    Lake Forest station is a commuter rail stop in Lake Forest, Illinois, serving passengers on Metra’s Union Pacific North Line between Chicago and the northern suburbs.
  • D. 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.
  • E. 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.
  • 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: Lake Cook Road station
Triple: [Deerfield, Illinois, hasRailStation, Lake Cook Road station]
Generated description
Lake Cook Road station is a Metra commuter rail station serving the northern suburbs of Chicago, located near Deerfield, Illinois.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Lake Cook Road station
Target entity description: Lake Cook Road station is a Metra commuter rail station serving the northern suburbs of Chicago, located near Deerfield, Illinois.
  • A. Chicago Ridge station
    Chicago Ridge station is a commuter rail stop in Chicago Ridge, Illinois, serving passengers on Metra’s SouthWest Service line between Chicago and its southwestern suburbs.
  • 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. Lake Forest station
    Lake Forest station is a commuter rail stop in Lake Forest, Illinois, serving passengers on Metra’s Union Pacific North Line between Chicago and the northern suburbs.
  • D. 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.
  • E. 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.
  • 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_69ca8285d6488190a95d4c02d7354b53 completed March 30, 2026, 2:02 p.m.
NER Named-entity recognition batch_69cb14c6cbe48190b73df491de1004c3 completed March 31, 2026, 12:26 a.m.
NED1 Entity disambiguation (via context triple) batch_69cb5ad44ff081908954395aef6ac78b completed March 31, 2026, 5:25 a.m.
NEDg Description generation batch_69cb5f1afe0c8190916c7a9b2eab9270 completed March 31, 2026, 5:43 a.m.
NED2 Entity disambiguation (via description) batch_69cb766e41fc8190a08f07d04774053a completed March 31, 2026, 7:23 a.m.
Created at: March 30, 2026, 4:48 p.m.