Triple

T18121904
Position Surface form Disambiguated ID Type / Status
Subject San Joaquin Valley transportation corridor E433758 entity
Predicate includesRailLine P848 FINISHED
Object Union Pacific Railroad Fresno Subdivision — NE NERFINISHED

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 Railroad Fresno Subdivision | Statement: [San Joaquin Valley transportation corridor, includesRailLine, Union Pacific Railroad Fresno Subdivision]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Union Pacific Railroad Fresno Subdivision
Context triple: [San Joaquin Valley transportation corridor, includesRailLine, Union Pacific Railroad Fresno Subdivision]
  • A. Union Pacific Railroad Fresno Subdivision chosen
    The Union Pacific Railroad Fresno Subdivision is a key freight and passenger rail corridor in California’s Central Valley that carries both Union Pacific trains and Altamont Corridor Express commuter services.
  • B. Union Pacific Valley Subdivision
    The Union Pacific Valley Subdivision is a railroad line operated by Union Pacific that serves as a key freight corridor within its regional rail network.
  • C. Union Pacific Railroad Martinez Subdivision
    The Union Pacific Railroad Martinez Subdivision is a key freight and passenger rail corridor in Northern California that runs along the eastern shore of the San Francisco Bay and through the Carquinez Strait area.
  • D. 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.
  • E. Union Pacific Railroad Mojave Subdivision
    The Union Pacific Railroad Mojave Subdivision is a freight rail line in Southern California that runs through the Mojave Desert, serving as a key east–west corridor for Union Pacific’s operations in the region.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (2 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_69d8b909e8cc81908df4cc2b8ea6d11f completed April 10, 2026, 8:47 a.m.
NER Named-entity recognition batch_69e4ddea61bc8190af4b3efa2596b632 completed April 19, 2026, 1:51 p.m.
Created at: April 10, 2026, 10:28 a.m.