Triple

T17570562
Position Surface form Disambiguated ID Type / Status
Subject Union Pacific Railroad Niles Subdivision E427923 entity
Predicate locatedInMetropolitanArea P294 FINISHED
Object San Francisco–Oakland–San Jose region — 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: San Francisco–Oakland–San Jose region | Statement: [Union Pacific Railroad Niles Subdivision, locatedInMetropolitanArea, San Francisco–Oakland–San Jose region]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: San Francisco–Oakland–San Jose region
Context triple: [Union Pacific Railroad Niles Subdivision, locatedInMetropolitanArea, San Francisco–Oakland–San Jose region]
  • A. San Francisco Bay Area chosen
    The San Francisco Bay Area is a major metropolitan region in Northern California known for its technology industry, cultural diversity, and iconic landmarks such as the Golden Gate Bridge.
  • B. San Jose-Sunnyvale-Santa Clara metropolitan area
    The San Jose–Sunnyvale–Santa Clara metropolitan area is a major Silicon Valley tech hub in California’s Bay Area, centered on San Jose and known for its high concentration of technology companies and innovation.
  • C. Monterey Bay Area
    The Monterey Bay Area is a coastal region of central California known for its rich marine ecosystem, historic fishing and cannery industries, and scenic communities such as Monterey, Santa Cruz, and Carmel.
  • D. Palo Alto metropolitan area
    The Palo Alto metropolitan area is an urban region in the San Francisco Bay Area centered on the city of Palo Alto, known for its proximity to Stanford University and its role in the heart of Silicon Valley’s technology and innovation ecosystem.
  • E. Sacramento metropolitan area
    The Sacramento metropolitan area is a major urban region in Northern California centered on the state capital of Sacramento, encompassing surrounding suburban and rural counties.
  • 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_69d889e0385081908a04b66f4dd4bd0d completed April 10, 2026, 5:25 a.m.
NER Named-entity recognition batch_69e45930b0748190b55b95c523c47460 completed April 19, 2026, 4:25 a.m.
Created at: April 10, 2026, 5:50 a.m.