Triple

T458801
Position Surface form Disambiguated ID Type / Status
Subject Altamont Corridor Express E7290 entity
Predicate operatesIn P82 FINISHED
Object East Bay E45120 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: East Bay | Statement: [Altamont Corridor Express, operatesIn, East Bay]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: East Bay
Context triple: [Altamont Corridor Express, operatesIn, East Bay]
  • A. East Bay chosen
    East Bay is a region of the San Francisco Bay Area in Northern California, encompassing cities such as Oakland and Berkeley along the eastern shore of the bay.
  • B. East Bay
    East Bay is a coastal inlet and estuarine body of water in northwest Florida that forms part of the larger Pensacola Bay system.
  • C. San Francisco Bay Area
    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.
  • D. South Bay
    South Bay is the southern region of the San Francisco Bay Area, known for encompassing much of Silicon Valley and several major tech-centric cities.
  • E. San Francisco Peninsula
    The San Francisco Peninsula is the stretch of land in Northern California that separates the Pacific Ocean from the San Francisco Bay and hosts cities such as San Francisco, San Mateo, and Palo Alto.
  • 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_69a2e7e5c5bc8190a1dc8178218fba40 completed Feb. 28, 2026, 1:04 p.m.
NER Named-entity recognition batch_69a2efa4a6208190a8243a0e14f84f52 completed Feb. 28, 2026, 1:37 p.m.
NED1 Entity disambiguation (via context triple) batch_69ac3b91124c819099303f579c31677b completed March 7, 2026, 2:52 p.m.
Created at: Feb. 28, 2026, 1:12 p.m.