Triple

T8255377
Position Surface form Disambiguated ID Type / Status
Subject Union Pacific No. 119 E193057 entity
Predicate partOf P40 FINISHED
Object First Transcontinental Railroad completion ceremony E38256 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: First Transcontinental Railroad completion ceremony | Statement: [Union Pacific No. 119, partOf, First Transcontinental Railroad completion ceremony]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: First Transcontinental Railroad completion ceremony
Context triple: [Union Pacific No. 119, partOf, First Transcontinental Railroad completion ceremony]
  • A. Golden Spike ceremony
    The Golden Spike ceremony was the 1869 event at Promontory Summit, Utah, that marked the completion of the United States’ First Transcontinental Railroad by symbolically joining its eastern and western sections.
  • B. 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.
  • C. 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.
  • D. 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.
  • E. Golden Spike National Historical Park
    Golden Spike National Historical Park is a U.S. National Park Service site in northern Utah that preserves and interprets the location where the First Transcontinental Railroad was completed in 1869.
  • 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_69ca82dfad9c8190b8cd18fb89f50f40 completed March 30, 2026, 2:04 p.m.
NER Named-entity recognition batch_69cb78f9f680819088f1d56e0f98974f completed March 31, 2026, 7:34 a.m.
NED1 Entity disambiguation (via context triple) batch_69cd3553b48881909cc72e443aad9539 completed April 1, 2026, 3:10 p.m.
Created at: March 30, 2026, 5:48 p.m.