Triple

T11105208
Position Surface form Disambiguated ID Type / Status
Subject Southern Pacific Railroad E262609 entity
Predicate owned P347 FINISHED
Object Pacific Electric Railway (controlling interest) E718775 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: Pacific Electric Railway (controlling interest) | Statement: [Southern Pacific Railroad, owned, Pacific Electric Railway (controlling interest)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Pacific Electric Railway (controlling interest)
Context triple: [Southern Pacific Railroad, owned, Pacific Electric Railway (controlling interest)]
  • A. Pacific Electric Railway chosen
    The Pacific Electric Railway was a vast early 20th-century interurban electric rail system centered in Los Angeles, famed for its iconic “Red Cars” that once formed one of the largest electric railway networks in the world.
  • B. Central California Traction Company
    The Central California Traction Company is a regional railroad in California that historically provided interurban electric rail service and later freight operations in the Central Valley.
  • C. Los Angeles Railway
    Los Angeles Railway was a historic streetcar transit system that operated an extensive network of urban rail lines in Los Angeles during the first half of the 20th century.
  • D. 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.
  • E. Westinghouse Amrail Company
    Westinghouse Amrail Company was a railcar manufacturing firm known for producing New York City’s R68 subway cars.
  • 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_69d6aa9a40d88190a373e2c7e48285db completed April 8, 2026, 7:20 p.m.
NER Named-entity recognition batch_69d79a2e319881909e66d3c0c73b56bc completed April 9, 2026, 12:23 p.m.
NED1 Entity disambiguation (via context triple) batch_69e42d7016908190bb7aadadacb5b50f completed April 19, 2026, 1:18 a.m.
Created at: April 8, 2026, 9:27 p.m.