Triple

T19877884
Position Surface form Disambiguated ID Type / Status
Subject Central Oregon and Pacific Railroad E477686 entity
Predicate hasLine P35 FINISHED
Object Eugene–Black Butte main line — NE NERFINISHED

How this triple was built (3 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: Eugene–Black Butte main line | Statement: [Central Oregon and Pacific Railroad, hasLine, Eugene–Black Butte main line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Eugene–Black Butte main line
Context triple: [Central Oregon and Pacific Railroad, hasLine, Eugene–Black Butte main line]
  • A. BNSF Hi Line Subdivision
    BNSF Hi Line Subdivision is a major BNSF Railway main line in northern Montana that carries significant freight and Amtrak passenger traffic across the region.
  • B. BNSF Railway Columbia River Subdivision
    BNSF Railway Columbia River Subdivision is a freight and passenger rail line in Washington State that follows the Columbia River as part of BNSF’s Northern Transcon route.
  • C. BNSF Seligman Subdivision
    BNSF Seligman Subdivision is a major freight and passenger rail line in northern Arizona that forms part of the transcontinental route between Southern California and the Midwest.
  • D. BNSF Railway Monticello Subdivision
    The BNSF Railway Monticello Subdivision is a freight and passenger rail corridor in Minnesota that carries BNSF trains as well as Metro Transit's Northstar commuter rail service between Minneapolis and its northwestern suburbs.
  • E. Union Pacific Moffat Subdivision
    The Union Pacific Moffat Subdivision is a major railroad line in Colorado that carries freight and passenger trains through the Rocky Mountains via the historic Moffat Tunnel and surrounding mountain passes.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Eugene–Black Butte main line
Target entity description: 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.
  • A. BNSF Hi Line Subdivision
    BNSF Hi Line Subdivision is a major BNSF Railway main line in northern Montana that carries significant freight and Amtrak passenger traffic across the region.
  • B. BNSF Railway Columbia River Subdivision
    BNSF Railway Columbia River Subdivision is a freight and passenger rail line in Washington State that follows the Columbia River as part of BNSF’s Northern Transcon route.
  • C. BNSF Seligman Subdivision
    BNSF Seligman Subdivision is a major freight and passenger rail line in northern Arizona that forms part of the transcontinental route between Southern California and the Midwest.
  • D. BNSF Railway Monticello Subdivision
    The BNSF Railway Monticello Subdivision is a freight and passenger rail corridor in Minnesota that carries BNSF trains as well as Metro Transit's Northstar commuter rail service between Minneapolis and its northwestern suburbs.
  • E. Union Pacific Moffat Subdivision
    The Union Pacific Moffat Subdivision is a major railroad line in Colorado that carries freight and passenger trains through the Rocky Mountains via the historic Moffat Tunnel and surrounding mountain passes.
  • F. None of above. chosen

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_69d8e51f32b08190b3687f4f60353250 completed April 10, 2026, 11:55 a.m.
NER Named-entity recognition batch_69e658dc8ce08190b005ad49924e5659 completed April 20, 2026, 4:48 p.m.
Created at: April 10, 2026, 1:52 p.m.