Triple

T22004676
Position Surface form Disambiguated ID Type / Status
Subject Durango and Silverton Narrow Gauge Railroad E543419 entity
Predicate owner P347 FINISHED
Object Durango & Silverton Narrow Gauge Railroad, Inc. — 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: Durango & Silverton Narrow Gauge Railroad, Inc. | Statement: [Durango and Silverton Narrow Gauge Railroad, owner, Durango & Silverton Narrow Gauge Railroad, Inc.]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Durango & Silverton Narrow Gauge Railroad, Inc.
Context triple: [Durango and Silverton Narrow Gauge Railroad, owner, Durango & Silverton Narrow Gauge Railroad, Inc.]
  • A. Durango and Silverton Narrow Gauge Railroad chosen
    The Durango and Silverton Narrow Gauge Railroad is a historic, steam-powered narrow-gauge tourist railway in Colorado that preserves and operates a scenic portion of the former Denver and Rio Grande Western Railroad line through the Rocky Mountains.
  • B. Leadville Colorado & Southern Railroad
    The Leadville Colorado & Southern Railroad is a heritage tourist railway in Leadville, Colorado, offering scenic rides through the Rocky Mountains along historic narrow-gauge mining routes.
  • C. Colorado & Southern Railway
    The Colorado & Southern Railway was a historic regional railroad in the central United States that served Colorado and neighboring states, playing a key role in the development of mining and mountain communities in the late 19th and early 20th centuries.
  • D. Denver and Rio Grande Western Railroad
    The Denver and Rio Grande Western Railroad was a historic U.S. railroad known for its scenic mountain routes through Colorado and Utah and its role in transcontinental passenger and freight service.
  • E. Carson and Colorado Railway
    The Carson and Colorado Railway was a narrow-gauge railroad that operated in the late 19th and early 20th centuries, primarily serving remote mining regions in Nevada and eastern California.
  • 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_69e11e2db934819095556760c7d85e4d completed April 16, 2026, 5:36 p.m.
NER Named-entity recognition batch_69f1276d81e4819083a40e51249e7fd7 completed April 28, 2026, 9:32 p.m.
Created at: April 16, 2026, 8:20 p.m.