Triple

T14889185
Position Surface form Disambiguated ID Type / Status
Subject Alameda-Contra Costa Transit District E359707 entity
Predicate regionServed P82 FINISHED
Object San Francisco–Oakland metropolitan area E5432 NE FINISHED

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 metropolitan area | Statement: [Alameda-Contra Costa Transit District, regionServed, San Francisco–Oakland metropolitan area]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: San Francisco–Oakland metropolitan area
Context triple: [Alameda-Contra Costa Transit District, regionServed, San Francisco–Oakland metropolitan area]
  • 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. Vallejo–Fairfield metropolitan area
    The Vallejo–Fairfield metropolitan area is a Northern California metro region centered on the cities of Vallejo and Fairfield in Solano County, forming part of the broader San Francisco Bay Area.
  • C. 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.
  • D. 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.
  • E. 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.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (3 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_69d827980cbc8190a0c569ae3940a1d9 completed April 9, 2026, 10:26 p.m.
NER Named-entity recognition batch_69ded5f6cf5c8190b6b28f58fafe5d59 completed April 15, 2026, 12:04 a.m.
NED1 Entity disambiguation (via context triple) batch_69fe968a17188190bced83ed1006e020 completed May 9, 2026, 2:06 a.m.
Created at: April 10, 2026, 2:09 a.m.