Triple

T1311294
Position Surface form Disambiguated ID Type / Status
Subject Metra Union Pacific West Line E27995 entity
Predicate startPoint P389 FINISHED
Object Ogilvie Transportation Center E156565 NE FINISHED

How this triple was built (2 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: Ogilvie Transportation Center | Statement: [Metra Union Pacific West Line, startPoint, Ogilvie Transportation Center]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Ogilvie Transportation Center
Context triple: [Metra Union Pacific West Line, startPoint, Ogilvie Transportation Center]
  • A. Ogilvie Transportation Center chosen
    Ogilvie Transportation Center is a major commuter rail terminal in downtown Chicago serving multiple Metra lines and connecting suburban riders to the city's central business district.
  • B. Arrott Transportation Center
    Arrott Transportation Center is a major public transit hub in Philadelphia that serves as an important connection point for subway and bus routes in the city’s Frankford neighborhood.
  • C. Aurora Transportation Center
    Aurora Transportation Center is a major commuter rail and bus hub in Aurora, Illinois, serving as the western terminus for Metra’s BNSF Railway Line and a key regional transit center.
  • D. Fern Rock Transportation Center
    Fern Rock Transportation Center is a major multimodal transit hub in North Philadelphia that serves as a key subway, regional rail, and bus interchange in the SEPTA system.
  • E. Gresham Central Transit Center
    Gresham Central Transit Center is a major public transportation hub in Gresham, Oregon, serving as a key stop on the MAX Light Rail system and connecting multiple bus routes.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (3 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_69a496d7d83481908f83085854e51328 completed March 1, 2026, 7:43 p.m.
NER Named-entity recognition batch_69a4c1560f888190bdd9107b08395e0b completed March 1, 2026, 10:44 p.m.
NED1 Entity disambiguation (via context triple) batch_69acd47471108190b01121b384d871aa completed March 8, 2026, 1:44 a.m.
Created at: March 1, 2026, 7:51 p.m.