Triple

T22161673
Position Surface form Disambiguated ID Type / Status
Subject Sacramento Northern Railway E547684 entity
Predicate notableRoute P22 FINISHED
Object Sacramento–Chico 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: Sacramento–Chico line | Statement: [Sacramento Northern Railway, notableRoute, Sacramento–Chico line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Sacramento–Chico line
Context triple: [Sacramento Northern Railway, notableRoute, Sacramento–Chico line]
  • A. East Bay–Central Valley rail corridor
    The East Bay–Central Valley rail corridor is a major freight and passenger rail route linking California’s San Francisco Bay Area with the Central Valley through the East Bay.
  • B. 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.
  • C. San Joaquins route
    The San Joaquins route is an Amtrak passenger rail service in California that connects the San Francisco Bay Area and Sacramento with the Central Valley and Bakersfield.
  • D. San Francisco–San Jose rail corridor
    The San Francisco–San Jose rail corridor is a major commuter and intercity rail line on the San Francisco Peninsula that connects San Francisco and San Jose, primarily served by Caltrain.
  • E. 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.
  • 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: Sacramento–Chico line
Target entity description: The Sacramento–Chico line was an interurban electric railway route in Northern California that connected Sacramento with Chico as part of the Sacramento Northern Railway system.
  • A. East Bay–Central Valley rail corridor
    The East Bay–Central Valley rail corridor is a major freight and passenger rail route linking California’s San Francisco Bay Area with the Central Valley through the East Bay.
  • B. 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.
  • C. San Joaquins route
    The San Joaquins route is an Amtrak passenger rail service in California that connects the San Francisco Bay Area and Sacramento with the Central Valley and Bakersfield.
  • D. San Francisco–San Jose rail corridor
    The San Francisco–San Jose rail corridor is a major commuter and intercity rail line on the San Francisco Peninsula that connects San Francisco and San Jose, primarily served by Caltrain.
  • E. 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.
  • 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_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.