Triple

T6316993
Position Surface form Disambiguated ID Type / Status
Subject Metra Union Pacific North Line E141640 entity
Predicate followsRailroad P70018 FINISHED
Object Union Pacific Railroad North Line E162988 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: Union Pacific Railroad North Line | Statement: [Metra Union Pacific North Line, followsRailroad, Union Pacific Railroad North Line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Union Pacific Railroad North Line
Context triple: [Metra Union Pacific North Line, followsRailroad, Union Pacific Railroad North Line]
  • A. Union Pacific North Line chosen
    The Union Pacific North Line is a Metra commuter rail line in the Chicago metropolitan area that runs north from downtown Chicago through suburbs along Lake Michigan into Kenosha, Wisconsin.
  • B. Union Pacific West Line
    The Union Pacific West Line is a commuter rail route in the Chicago metropolitan area that runs between downtown Chicago and western suburbs, providing daily passenger service as part of the Metra system.
  • C. Union Pacific Railroad Niles Subdivision
    The Union Pacific Railroad Niles Subdivision is a freight and passenger rail corridor in California’s East Bay and Tri-Valley region that carries both Union Pacific trains and commuter services such as the Altamont Corridor Express.
  • D. Union Pacific Northwest Line
    The Union Pacific Northwest Line is a commuter rail route serving Chicago and its northwestern suburbs as part of the Metra rail system.
  • E. Union Pacific Railroad Coast Subdivision
    The Union Pacific Railroad Coast Subdivision is a key rail corridor in California that carries both freight and commuter services, including trains operated by the Altamont Corridor Express.
  • 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: followsRailroad
Context triple: [Metra Union Pacific North Line, followsRailroad, Union Pacific Railroad North Line]
  • A. followsFormerRailroad
    Indicates that something is aligned with or traces the route of a former railroad line.
  • B. hasRailRoute
    Indicates that there exists a rail-based transportation route or connection between the related entities.
  • C. railroadMet
    Indicates that two or more railroads encountered or connected with each other at a specific place or time.
  • D. railroad
    Indicates that one entity constructs, operates, or provides railroad or train transportation services for another entity or area.
  • E. railTracks
    Indicates that one entity consists of, includes, or is associated with rail tracks used for guiding trains or rail vehicles.
  • F. None of above. chosen

Provenance (5 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_69c008d13b8c8190be47d896eb735605 completed March 22, 2026, 3:20 p.m.
NER Named-entity recognition batch_69c064c25530819080b29e0029175c00 completed March 22, 2026, 9:53 p.m.
NED1 Entity disambiguation (via context triple) batch_69c6385ef7c48190bc81711856977330 completed March 27, 2026, 7:57 a.m.
PD Predicate disambiguation batch_69c060e5efc48190861b8266e5b0cc0c completed March 22, 2026, 9:36 p.m.
PDg Predicate description generation batch_69c0623bb29081908bfdfb84a07ece90 completed March 22, 2026, 9:42 p.m.
Created at: March 22, 2026, 4:29 p.m.