Triple

T21402011
Position Surface form Disambiguated ID Type / Status
Subject Santa Rosa metropolitan area E527932 entity
Predicate railService P522 FINISHED
Object Sonoma–Marin Area Rail Transit — 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: Sonoma–Marin Area Rail Transit | Statement: [Santa Rosa metropolitan area, railService, Sonoma–Marin Area Rail Transit]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Sonoma–Marin Area Rail Transit
Context triple: [Santa Rosa metropolitan area, railService, Sonoma–Marin Area Rail Transit]
  • A. Sonoma–Marin Area Rail Transit chosen
    Sonoma–Marin Area Rail Transit is a commuter rail system in California’s North Bay that provides passenger service along the Highway 101 corridor in Sonoma and Marin counties.
  • B. Caltrain
    Caltrain is a commuter rail service on the San Francisco Peninsula and in the Santa Clara Valley, connecting San Francisco to San Jose and Gilroy in California.
  • C. Altamont Corridor Express
    Altamont Corridor Express is a commuter rail service in Northern California that connects Central Valley communities with the San Francisco Bay Area.
  • 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. Sonoma County Transit
    Sonoma County Transit is the primary public bus system serving communities throughout Sonoma County in Northern California.
  • 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_69e0b520ee3c8190abddbee7e37e834c completed April 16, 2026, 10:08 a.m.
NER Named-entity recognition batch_69e8b1702b44819080b282c22d151c88 completed April 22, 2026, 11:30 a.m.
Created at: April 16, 2026, 5:18 p.m.