Triple

T1469540
Position Surface form Disambiguated ID Type / Status
Subject Mount Prospect, Illinois E27102 entity
Predicate servedBy P82 FINISHED
Object Metra Union Pacific Northwest Line E128947 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 Northwest Line | Statement: [Mount Prospect, Illinois, servedBy, Metra Union Pacific Northwest Line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Metra Union Pacific Northwest Line
Context triple: [Mount Prospect, Illinois, servedBy, Metra Union Pacific Northwest Line]
  • A. Metra Union Pacific Northwest Line chosen
    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.
  • 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 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.
  • 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. Golden Valley Line
    The Golden Valley Line is a regional railway route in England running through the scenic Golden Valley between Gloucester and Swindon, serving towns such as Stroud and Kemble.
  • 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_69a496d25d6881909dbd84f86d763992 completed March 1, 2026, 7:43 p.m.
NER Named-entity recognition batch_69a4c5d8bb68819095b7b413247ad657 completed March 1, 2026, 11:03 p.m.
NED1 Entity disambiguation (via context triple) batch_69ad680440dc8190ad28ec47c5a35d28 completed March 8, 2026, 12:13 p.m.
Created at: March 1, 2026, 8:01 p.m.