Triple

T1311316
Position Surface form Disambiguated ID Type / Status
Subject Metra Union Pacific West Line E27995 entity
Predicate connectsWith P37 FINISHED
Object Union Pacific North Line at Ogilvie Transportation Center E141640 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: Union Pacific North Line at Ogilvie Transportation Center | Statement: [Metra Union Pacific West Line, connectsWith, Union Pacific North Line at Ogilvie Transportation Center]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Union Pacific North Line at Ogilvie Transportation Center
Context triple: [Metra Union Pacific West Line, connectsWith, Union Pacific North Line at Ogilvie Transportation Center]
  • A. Northstar commuter rail
    Northstar commuter rail is a commuter train service in the Minneapolis–Saint Paul metropolitan area that connects downtown Minneapolis with northern suburbs and exurban communities.
  • B. 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.
  • C. Amtrak services at Chicago Union Station
    Amtrak services at Chicago Union Station comprise a major hub of intercity passenger rail routes connecting Chicago with numerous destinations across the United States.
  • D. Metra Union Pacific North Line chosen
    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.
  • E. Metra Union Pacific West Line
    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.
  • 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_69acbf2964048190950723487c7cf707 completed March 8, 2026, 12:13 a.m.
Created at: March 1, 2026, 7:51 p.m.