Triple

T19877872
Position Surface form Disambiguated ID Type / Status
Subject Central Oregon and Pacific Railroad E477686 entity
Predicate operatesOver P3695 FINISHED
Object Siskiyou Line
The Siskiyou Line is a historic north–south railroad route crossing the Siskiyou Mountains between Oregon and California, long used for freight service through this rugged terrain.
E1401557 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: Siskiyou Line | Statement: [Central Oregon and Pacific Railroad, operatesOver, Siskiyou Line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Siskiyou Line
Context triple: [Central Oregon and Pacific Railroad, operatesOver, Siskiyou Line]
  • A. Coos Bay Rail Line
    The Coos Bay Rail Line is a regional freight railroad in southwestern Oregon that links coastal communities around Coos Bay with the broader U.S. rail network.
  • B. Southern Pacific Donner Pass line
    The Southern Pacific Donner Pass line is a historic and treacherous trans-Sierra Nevada railroad route in California, renowned for its steep grades, heavy snowfall, and vital role in westward rail transportation.
  • C. Eugene–Black Butte main line
    The Eugene–Black Butte main line is a key Central Oregon and Pacific Railroad route in western Oregon, carrying freight traffic between the Eugene area and the Black Butte junction.
  • D. Oregon and California Railroad
    The Oregon and California Railroad was a 19th-century rail line in the Pacific Northwest that played a key role in connecting Oregon communities and facilitating regional development.
  • E. Spruce Railroad
    Spruce Railroad was a historic logging railway on Washington’s Olympic Peninsula, originally built during World War I to transport spruce timber for military aircraft production.
  • 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: Siskiyou Line
Triple: [Central Oregon and Pacific Railroad, operatesOver, Siskiyou Line]
Generated description
The Siskiyou Line is a historic north–south railroad route crossing the Siskiyou Mountains between Oregon and California, long used for freight service through this rugged terrain.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Siskiyou Line
Target entity description: The Siskiyou Line is a historic north–south railroad route crossing the Siskiyou Mountains between Oregon and California, long used for freight service through this rugged terrain.
  • A. Coos Bay Rail Line
    The Coos Bay Rail Line is a regional freight railroad in southwestern Oregon that links coastal communities around Coos Bay with the broader U.S. rail network.
  • B. Southern Pacific Donner Pass line
    The Southern Pacific Donner Pass line is a historic and treacherous trans-Sierra Nevada railroad route in California, renowned for its steep grades, heavy snowfall, and vital role in westward rail transportation.
  • C. Eugene–Black Butte main line
    The Eugene–Black Butte main line is a key Central Oregon and Pacific Railroad route in western Oregon, carrying freight traffic between the Eugene area and the Black Butte junction.
  • D. Oregon and California Railroad
    The Oregon and California Railroad was a 19th-century rail line in the Pacific Northwest that played a key role in connecting Oregon communities and facilitating regional development.
  • E. Spruce Railroad
    Spruce Railroad was a historic logging railway on Washington’s Olympic Peninsula, originally built during World War I to transport spruce timber for military aircraft production.
  • 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_69d8e51f32b08190b3687f4f60353250 completed April 10, 2026, 11:55 a.m.
NER Named-entity recognition batch_69e658dc8ce08190b005ad49924e5659 completed April 20, 2026, 4:48 p.m.
NED1 Entity disambiguation (via context triple) batch_6a07ea3a02bc8190ad9d8fc40fbd3344 completed May 16, 2026, 3:53 a.m.
NEDg Description generation batch_6a07ef6c2bd081908cd03ec9d30c6e3c completed May 16, 2026, 4:15 a.m.
NED2 Entity disambiguation (via description) batch_6a07efb8b2a081909427b1b198109332 completed May 16, 2026, 4:16 a.m.
Created at: April 10, 2026, 1:52 p.m.