Triple

T22161644
Position Surface form Disambiguated ID Type / Status
Subject Sacramento Northern Railway E547684 entity
Predicate formedByMergerOf P77 FINISHED
Object Oakland, Antioch and Eastern Railway
The Oakland, Antioch and Eastern Railway was an early 20th-century electric interurban railroad in Northern California that later became a key component of the Sacramento Northern Railway system.
E547684 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: Oakland, Antioch and Eastern Railway | Statement: [Sacramento Northern Railway, formedByMergerOf, Oakland, Antioch and Eastern Railway]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Oakland, Antioch and Eastern Railway
Context triple: [Sacramento Northern Railway, formedByMergerOf, Oakland, Antioch and Eastern Railway]
  • A. 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.
  • B. Los Angeles Railway
    Los Angeles Railway was a historic streetcar transit system that operated an extensive network of urban rail lines in Los Angeles during the first half of the 20th century.
  • C. 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.
  • D. 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.
  • E. Valley and Siletz Railroad
    The Valley and Siletz Railroad was a short line railway in Oregon that primarily served logging and timber operations in the early to mid-20th century.
  • 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: Oakland, Antioch and Eastern Railway
Triple: [Sacramento Northern Railway, formedByMergerOf, Oakland, Antioch and Eastern Railway]
Generated description
The Oakland, Antioch and Eastern Railway was an early 20th-century electric interurban railroad in Northern California that later became a key component of the Sacramento Northern Railway system.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Oakland, Antioch and Eastern Railway
Target entity description: The Oakland, Antioch and Eastern Railway was an early 20th-century electric interurban railroad in Northern California that later became a key component of the Sacramento Northern Railway system.
  • 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. Los Angeles Railway
    Los Angeles Railway was a historic streetcar transit system that operated an extensive network of urban rail lines in Los Angeles during the first half of the 20th century.
  • C. 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.
  • D. 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.
  • E. Valley and Siletz Railroad
    The Valley and Siletz Railroad was a short line railway in Oregon that primarily served logging and timber operations in the early to mid-20th century.
  • 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_69e11e3c4c5c81908d336165816b12e0 completed April 16, 2026, 5:37 p.m.
NER Named-entity recognition batch_69f12a2d8064819094d27ef9f15c6a1f completed April 28, 2026, 9:44 p.m.
NED1 Entity disambiguation (via context triple) batch_6a0a9eba95d48190bc19f69531dbb752 completed May 18, 2026, 5:08 a.m.
NEDg Description generation batch_6a0aa06763b48190ab0ecdf90de4f463 completed May 18, 2026, 5:15 a.m.
NED2 Entity disambiguation (via description) batch_6a0aa0c4d1648190b04e6a6cc7afd756 completed May 18, 2026, 5:16 a.m.
Created at: April 16, 2026, 8:34 p.m.