Triple

T21372174
Position Surface form Disambiguated ID Type / Status
Subject Samuel S. Montague E527092 entity
Predicate associatedWith P37 FINISHED
Object First Transcontinental Railroad — NE NERFINISHED

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: First Transcontinental Railroad | Statement: [Samuel S. Montague, associatedWith, First Transcontinental Railroad]

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: First Transcontinental Railroad
Context triple: [Samuel S. Montague, associatedWith, First Transcontinental Railroad]
  • A. First Transcontinental Railroad chosen
    The First Transcontinental Railroad was the 19th-century rail line that first connected the eastern and western United States by land, revolutionizing cross-country travel, commerce, and settlement.
  • B. Pacific Railroad
    Pacific Railroad was an early American railway company that became the predecessor of the Missouri Pacific Railroad (MoPac), helping to pioneer rail transportation in the central United States.
  • C. National Transcontinental Railway
    The National Transcontinental Railway was a historic Canadian transcontinental rail line built in the early 20th century to link eastern and western Canada and later absorbed into the Canadian National Railway system.
  • D. Central Pacific Railroad
    The Central Pacific Railroad was a major 19th-century American railroad company that built the western portion of the First Transcontinental Railroad, linking California to the eastern United States and transforming transportation and commerce.
  • E. Central Pacific
    Central Pacific refers to the midsection of the Pacific Ocean region, historically significant as a major area of military operations and command during the Pacific theater of World War II.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (2 batches)

Stage Batch ID Job type Status
creating batch_69e0b51e80808190ba5cb05667af02a9 elicitation completed
NER batch_69e8b0b0d5ec81908da8f38380dbdc7a ner completed
Created at: April 16, 2026, 5:10 p.m.