Triple

T2512790
Position Surface form Disambiguated ID Type / Status
Subject Metra Electric District line E52738 entity
Predicate primaryDowntownStation P394 FINISHED
Object Millennium Station E112884 NE FINISHED

How this triple was built (3 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: Millennium Station | Statement: [Metra Electric District line, primaryDowntownStation, Millennium Station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Millennium Station
Context triple: [Metra Electric District line, primaryDowntownStation, Millennium Station]
  • A. Millennium Station chosen
    Millennium Station is a major downtown Chicago commuter rail terminal serving Metra Electric District and South Shore Line trains beneath Millennium Park.
  • B. Waterfront Station
    Waterfront Station is a major transit hub in downtown Vancouver, British Columbia, serving multiple rail and bus lines and providing access to the historic Gastown district.
  • C. Concourse B Station
    Concourse B Station is an AeroTrain passenger rail stop serving Concourse B at Washington Dulles International Airport, providing automated transit between terminals.
  • D. Palatine station
    Palatine station is a commuter rail station in Palatine, Illinois, serving as a stop on Metra's Union Pacific Northwest Line in the Chicago metropolitan area.
  • E. Civic Center station
    Civic Center station is a major public transit hub in downtown St. Louis, Missouri, serving MetroLink light rail and numerous bus routes near the Enterprise Center arena.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
PD Predicate disambiguation gpt-5-mini-2025-08-07 
Target predicate: primaryDowntownStation
Context triple: [Metra Electric District line, primaryDowntownStation, Millennium Station]
  • A. isDowntownEndpointOf
    Indicates that a location serves as the downtown terminus or endpoint of a route, line, or path.
  • B. subwayStation
    Indicates that one entity is a subway station associated with, located in, or serving the other entity.
  • C. primaryStation chosen
    Indicates that one station is designated as the main or principal station associated with another entity or within a given context.
  • D. terminusStation
    Indicates that a station serves as the final endpoint or terminal stop for a given route or service.
  • E. terminalStationSouth
    Indicates that a given station serves as the southern terminal (end point) of a particular route or line.
  • F. None of above.

Provenance (4 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_69ab4958e76481908a235377dd921c9e completed March 6, 2026, 9:38 p.m.
NER Named-entity recognition batch_69abd5a33234819082ad49fa6594b6be completed March 7, 2026, 7:37 a.m.
NED1 Entity disambiguation (via context triple) batch_69af9068798c8190958c5522276906fe completed March 10, 2026, 3:30 a.m.
PD Predicate disambiguation batch_69abd0bf37c0819088d28b5081ba7556 completed March 7, 2026, 7:16 a.m.
Created at: March 6, 2026, 9:46 p.m.