Triple

T4889217
Position Surface form Disambiguated ID Type / Status
Subject Medford, Oregon E109515 entity
Predicate servedByRailway P848 FINISHED
Object Central Oregon and Pacific Railroad
The Central Oregon and Pacific Railroad is a regional freight railroad operating in southwestern Oregon and northern California, primarily hauling lumber, wood products, and other commodities over former Southern Pacific lines.
E477686 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: Central Oregon and Pacific Railroad | Statement: [Medford, Oregon, servedByRailway, Central Oregon and Pacific Railroad]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Central Oregon and Pacific Railroad
Context triple: [Medford, Oregon, servedByRailway, Central Oregon and Pacific Railroad]
  • A. Northwestern Pacific Railroad
    The Northwestern Pacific Railroad was a historic rail line in Northern California that connected the San Francisco Bay Area to communities throughout Marin, Sonoma, and Humboldt counties, supporting regional passenger and freight transport.
  • B. Union Pacific Northwest Line
    The Union Pacific Northwest Line is a commuter rail route serving Chicago and its northwestern suburbs as part of the Metra rail system.
  • C. Spokane, Portland and Seattle Railway
    The Spokane, Portland and Seattle Railway was an early 20th-century Pacific Northwest railroad line, backed by railroad magnate James J. Hill, that connected key cities along the Columbia River and facilitated regional trade and transportation.
  • D. Western Pacific Railroad
    Western Pacific Railroad was a major American railroad company that operated primarily in the western United States, known for its scenic transcontinental routes and competitive service against larger carriers like the Southern Pacific.
  • E. Virginia and Truckee Railroad
    The Virginia and Truckee Railroad was a historic 19th-century short-line railway in Nevada that played a crucial role in transporting ore, supplies, and passengers for the Comstock Lode mining boom.
  • 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: Central Oregon and Pacific Railroad
Triple: [Medford, Oregon, servedByRailway, Central Oregon and Pacific Railroad]
Generated description
The Central Oregon and Pacific Railroad is a regional freight railroad operating in southwestern Oregon and northern California, primarily hauling lumber, wood products, and other commodities over former Southern Pacific lines.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Central Oregon and Pacific Railroad
Target entity description: The Central Oregon and Pacific Railroad is a regional freight railroad operating in southwestern Oregon and northern California, primarily hauling lumber, wood products, and other commodities over former Southern Pacific lines.
  • A. Northwestern Pacific Railroad
    The Northwestern Pacific Railroad was a historic rail line in Northern California that connected the San Francisco Bay Area to communities throughout Marin, Sonoma, and Humboldt counties, supporting regional passenger and freight transport.
  • B. Union Pacific Northwest Line
    The Union Pacific Northwest Line is a commuter rail route serving Chicago and its northwestern suburbs as part of the Metra rail system.
  • C. Spokane, Portland and Seattle Railway
    The Spokane, Portland and Seattle Railway was an early 20th-century Pacific Northwest railroad line, backed by railroad magnate James J. Hill, that connected key cities along the Columbia River and facilitated regional trade and transportation.
  • D. Western Pacific Railroad
    Western Pacific Railroad was a major American railroad company that operated primarily in the western United States, known for its scenic transcontinental routes and competitive service against larger carriers like the Southern Pacific.
  • E. Virginia and Truckee Railroad
    The Virginia and Truckee Railroad was a historic 19th-century short-line railway in Nevada that played a crucial role in transporting ore, supplies, and passengers for the Comstock Lode mining boom.
  • 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_69bd440f71348190b99938e59fb7f9a1 completed March 20, 2026, 12:56 p.m.
NER Named-entity recognition batch_69bd6e06a81881908734dbdc350a2039 completed March 20, 2026, 3:55 p.m.
NED1 Entity disambiguation (via context triple) batch_69be681704f08190938aec498d7d4662 completed March 21, 2026, 9:42 a.m.
NEDg Description generation batch_69be6d3127448190ab7a967ab78820a4 completed March 21, 2026, 10:04 a.m.
NED2 Entity disambiguation (via description) batch_69be6dd42bc08190ba4561f74ca7733b completed March 21, 2026, 10:07 a.m.
Created at: March 20, 2026, 1:28 p.m.