Triple

T11312910
Position Surface form Disambiguated ID Type / Status
Subject Elburn, Illinois E267885 entity
Predicate railTerminusOf P15150 FINISHED
Object Metra Union Pacific West Line E27995 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: Metra Union Pacific West Line | Statement: [Elburn, Illinois, railTerminusOf, Metra Union Pacific West Line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Metra Union Pacific West Line
Context triple: [Elburn, Illinois, railTerminusOf, Metra Union Pacific West Line]
  • A. Metra Union Pacific West Line chosen
    The Metra Union Pacific West Line is a commuter rail line in the Chicago metropolitan area that runs between downtown Chicago and western suburbs, including communities in DuPage County.
  • B. Metra Union Pacific North Line
    The Metra Union Pacific North Line is a commuter rail line in the Chicago metropolitan area that runs between downtown Chicago and its northern suburbs along the Union Pacific Railroad’s North Line.
  • C. Metra Union Pacific Northwest Line
    The Metra Union Pacific Northwest Line is a commuter rail line in the Chicago metropolitan area that provides service between downtown Chicago and its northwestern suburbs, including parts of McHenry County, Illinois.
  • D. Metra BNSF Railway Line
    The Metra BNSF Railway Line is a major Chicago-area commuter rail route running between Chicago Union Station and Aurora, Illinois, primarily along tracks owned by BNSF Railway.
  • E. Metra Heritage Corridor
    The Metra Heritage Corridor is a commuter rail line in the Chicago metropolitan area that provides weekday service between Chicago Union Station and Joliet, Illinois, largely following the historic Illinois & Michigan Canal corridor.
  • 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_69d6aaca5c24819083db46a30d86cb34 completed April 8, 2026, 7:21 p.m.
NER Named-entity recognition batch_69d7e9c1b7dc81908d8cc768c47390d3 completed April 9, 2026, 6:02 p.m.
NED1 Entity disambiguation (via context triple) batch_69e525c35538819085d76f7cdf362316 completed April 19, 2026, 6:58 p.m.
Created at: April 8, 2026, 9:32 p.m.