Triple

T8438100
Position Surface form Disambiguated ID Type / Status
Subject Union Pacific West Line E199279 entity
Predicate partOf P40 FINISHED
Object Union Pacific Railroad network E2147 NE FINISHED

Named-entity recognition

Before disambiguation, gpt-5-mini classified whether the object phrase is a named entity — the step behind the object's NE type shown above.

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 network | Statement: [Union Pacific West Line, partOf, Union Pacific Railroad network]

Disambiguation candidates (1 decision)

The exact options the model was shown at each disambiguation step, with the option it chose highlighted — the evidence behind this triple's disambiguated ids.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Union Pacific Railroad network
Context triple: [Union Pacific West Line, partOf, Union Pacific Railroad network]
  • A. Union Pacific Railroad line
    The Union Pacific Railroad line is a major freight rail route in the western United States operated by Union Pacific Railroad, one of the largest railroad networks in North America.
  • B. Union Pacific Railroad chosen
    Union Pacific Railroad is one of the largest freight rail networks in the United States, operating an extensive system that spans the western two-thirds of the country.
  • C. Union Pacific mainline routes
    Union Pacific mainline routes are the railroad’s primary high-capacity freight corridors that carry long-distance trains across its network, including through major facilities like Bailey Yard.
  • D. BNSF Railway
    BNSF Railway is one of the largest freight railroad networks in North America, operating an extensive system that spans the United States and parts of Canada and Mexico.
  • E. Southern Pacific Railroad
    Southern Pacific Railroad was a major American railroad company that operated extensive rail networks across the western and southwestern United States from the 19th to the late 20th century.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (3 batches)

Stage Batch ID Job type Status
creating batch_69ca8314cd6c8190a6b8c2a1096e18f3 elicitation completed
NER batch_69cbe135657c81908ed8156fbfbef6ec ner completed
NED1 batch_69ce1d87403c8190b979af4979e43517 ned_source_triple completed
Created at: March 30, 2026, 6:08 p.m.