Triple

T22161643
Position Surface form Disambiguated ID Type / Status
Subject Sacramento Northern Railway E547684 entity
Predicate formedByMergerOf P77 FINISHED
Object Sacramento Northern Railroad NE NERFINISHED

How this triple was built (2 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: Sacramento Northern Railroad | Statement: [Sacramento Northern Railway, formedByMergerOf, Sacramento Northern Railroad]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Sacramento Northern Railroad
Context triple: [Sacramento Northern Railway, formedByMergerOf, Sacramento Northern Railroad]
  • A. Sacramento Northern Railway chosen
    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.
  • B. 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.
  • C. Sacramento Valley Railroad
    The Sacramento Valley Railroad was one of California’s earliest railroads, built in the 1850s to connect Sacramento with nearby mining regions during the Gold Rush era.
  • D. 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.
  • E. San Francisco and North Pacific Railroad
    The San Francisco and North Pacific Railroad was a 19th-century regional railroad in Northern California that later became a key predecessor of the Northwestern Pacific Railroad.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

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_69e11e3c4c5c81908d336165816b12e0 completed April 16, 2026, 5:37 p.m.
NER Named-entity recognition batch_69f12a2d8064819094d27ef9f15c6a1f completed April 28, 2026, 9:44 p.m.
Created at: April 16, 2026, 8:34 p.m.