Triple

T9285518
Position Surface form Disambiguated ID Type / Status
Subject Northwestern Pacific Railroad E223383 entity
Predicate formedByMergerOf P77 FINISHED
Object California Northwestern Railway
California Northwestern Railway was a regional railroad in Northern California that later became part of the larger Northwestern Pacific Railroad system.
E223383 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: California Northwestern Railway | Statement: [Northwestern Pacific Railroad, formedByMergerOf, California Northwestern Railway]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: California Northwestern Railway
Context triple: [Northwestern Pacific Railroad, formedByMergerOf, California Northwestern Railway]
  • A. California Western Railroad
    California Western Railroad is a historic short-line railway in Northern California, best known for its scenic "Skunk Train" excursions through the redwood forests between Willits and Fort Bragg.
  • B. Sacramento Northern Railway
    The Sacramento Northern Railway was an interurban electric railway in Northern California that connected the San Francisco Bay Area with the Sacramento Valley and was later controlled by the Western Pacific Railroad.
  • C. 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.
  • D. Sacramento Southern Railroad
    The Sacramento Southern Railroad is a heritage railway in Sacramento, California, offering excursion train rides along the Sacramento River as part of the California State Railroad Museum’s operations.
  • E. Nevada Northern Railway
    The Nevada Northern Railway is a historic railway in eastern Nevada, preserved as a heritage line featuring original steam and diesel locomotives, vintage rolling stock, and museum facilities that showcase early 20th-century railroading.
  • 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: California Northwestern Railway
Triple: [Northwestern Pacific Railroad, formedByMergerOf, California Northwestern Railway]
Generated description
California Northwestern Railway was a regional railroad in Northern California that later became part of the larger Northwestern Pacific Railroad system.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: California Northwestern Railway
Target entity description: California Northwestern Railway was a regional railroad in Northern California that later became part of the larger Northwestern Pacific Railroad system.
  • A. California Western Railroad
    California Western Railroad is a historic short-line railway in Northern California, best known for its scenic "Skunk Train" excursions through the redwood forests between Willits and Fort Bragg.
  • B. Sacramento Northern Railway
    The Sacramento Northern Railway was an interurban electric railway in Northern California that connected the San Francisco Bay Area with the Sacramento Valley and was later controlled by the Western Pacific Railroad.
  • C. Northwestern Pacific Railroad chosen
    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.
  • D. Sacramento Southern Railroad
    The Sacramento Southern Railroad is a heritage railway in Sacramento, California, offering excursion train rides along the Sacramento River as part of the California State Railroad Museum’s operations.
  • E. Nevada Northern Railway
    The Nevada Northern Railway is a historic railway in eastern Nevada, preserved as a heritage line featuring original steam and diesel locomotives, vintage rolling stock, and museum facilities that showcase early 20th-century railroading.
  • F. None of above.

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_69ca8422ddf881908a3f8f876c9f53aa completed March 30, 2026, 2:09 p.m.
NER Named-entity recognition batch_69cd081fe8cc8190b6c1b481c7129689 completed April 1, 2026, 11:57 a.m.
NED1 Entity disambiguation (via context triple) batch_69d0b21d8f1081909b2493151fde4a5f completed April 4, 2026, 6:39 a.m.
NEDg Description generation batch_69d0b3234d088190a8ed13b4d4772fb5 completed April 4, 2026, 6:43 a.m.
NED2 Entity disambiguation (via description) batch_69d0b3bcd5548190ba1af3d0fa72780a completed April 4, 2026, 6:46 a.m.
Created at: March 30, 2026, 7:35 p.m.