Triple

T16817781
Position Surface form Disambiguated ID Type / Status
Subject Amtrak San Joaquins at Richmond station E408797 entity
Predicate partOfRoute P6309 FINISHED
Object San Joaquins Oakland–Bakersfield service E397595 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 Joaquins Oakland–Bakersfield service | Statement: [Amtrak San Joaquins at Richmond station, partOfRoute, San Joaquins Oakland–Bakersfield service]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: San Joaquins Oakland–Bakersfield service
Context triple: [Amtrak San Joaquins at Richmond station, partOfRoute, San Joaquins Oakland–Bakersfield service]
  • A. Alameda/Oakland–San Francisco route
    The Alameda/Oakland–San Francisco route is a commuter and tourist ferry service across San Francisco Bay connecting the East Bay cities of Alameda and Oakland with San Francisco.
  • B. San Jose–Auburn (select trains)
    San Jose–Auburn (select trains) is a Capitol Corridor passenger rail service pattern in Northern California that operates only certain trains between San Jose and Auburn rather than the full route’s usual endpoints.
  • C. 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.
  • D. San Joaquins (train)
    San Joaquins is an Amtrak intercity passenger train service in California that operates along the San Joaquin Valley, linking the Bay Area and Sacramento with Bakersfield.
  • E. San Joaquins route chosen
    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.
  • 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_69d88394566c8190b3dcbdc72935f7fa completed April 10, 2026, 4:59 a.m.
NER Named-entity recognition batch_69e3b2e30cf48190a61936ba0a49df24 completed April 18, 2026, 4:35 p.m.
NED1 Entity disambiguation (via context triple) batch_6a00b297778c81909a2545c359739151 completed May 10, 2026, 4:30 p.m.
Created at: April 10, 2026, 5:23 a.m.