Triple

T17804072
Position Surface form Disambiguated ID Type / Status
Subject Union Station (Houston) E444507 entity
Predicate servedRailroad P782 FINISHED
Object Gulf, Colorado and Santa Fe Railway
The Gulf, Colorado and Santa Fe Railway was a regional American railroad that operated primarily in Texas and the Gulf Coast region, later becoming part of the Atchison, Topeka and Santa Fe Railway system.
E1289205 NE FINISHED

How this triple was built (4 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: Gulf, Colorado and Santa Fe Railway | Statement: [Union Station (Houston), servedRailroad, Gulf, Colorado and Santa Fe Railway]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Gulf, Colorado and Santa Fe Railway
Context triple: [Union Station (Houston), servedRailroad, Gulf, Colorado and Santa Fe Railway]
  • A. 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.
  • B. Atchison, Topeka and Santa Fe Railway
    The Atchison, Topeka and Santa Fe Railway was a major American railroad that became one of the largest and most influential rail systems in the United States, central to the development of the Southwest.
  • C. 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.
  • D. 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.
  • 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. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg Description generation gpt-5.1
Instruction
Generate a one-sentence description of the target entity. 
You are given a context triple in the form (subject, predicate, object), where the object is the target entity. 
# Instructions
Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. 
Avoid repeating the information from the triple, unless really essential.
# Response Format
Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: Gulf, Colorado and Santa Fe Railway
Triple: [Union Station (Houston), servedRailroad, Gulf, Colorado and Santa Fe Railway]
Generated description
The Gulf, Colorado and Santa Fe Railway was a regional American railroad that operated primarily in Texas and the Gulf Coast region, later becoming part of the Atchison, Topeka and Santa Fe Railway system.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Gulf, Colorado and Santa Fe Railway
Target entity description: The Gulf, Colorado and Santa Fe Railway was a regional American railroad that operated primarily in Texas and the Gulf Coast region, later becoming part of the Atchison, Topeka and Santa Fe Railway system.
  • A. 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.
  • B. Atchison, Topeka and Santa Fe Railway
    The Atchison, Topeka and Santa Fe Railway was a major American railroad that became one of the largest and most influential rail systems in the United States, central to the development of the Southwest.
  • C. 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.
  • D. 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.
  • 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. chosen

Provenance (5 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_69d8b9efe370819095cd219b143ae727 completed April 10, 2026, 8:50 a.m.
NER Named-entity recognition batch_69e48802bcfc8190a138164d11081ab8 completed April 19, 2026, 7:45 a.m.
NED1 Entity disambiguation (via context triple) batch_6a02ff5c66d88190a2983c1eab7b546e completed May 12, 2026, 10:22 a.m.
NEDg Description generation batch_6a03008e910c819084c6dd079a93c335 completed May 12, 2026, 10:27 a.m.
NED2 Entity disambiguation (via description) batch_6a0300e885e481909c76dfbac2fd1009 completed May 12, 2026, 10:28 a.m.
Created at: April 10, 2026, 10:14 a.m.