Triple

T1068304
Position Surface form Disambiguated ID Type / Status
Subject Palo Alto station E23264 entity
Predicate hasFormerOwner P22003 FINISHED
Object Peninsula Corridor Joint Powers Board (right-of-way predecessor entities) E10436 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: Peninsula Corridor Joint Powers Board (right-of-way predecessor entities) | Statement: [Palo Alto station, hasFormerOwner, Peninsula Corridor Joint Powers Board (right-of-way predecessor entities)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Peninsula Corridor Joint Powers Board (right-of-way predecessor entities)
Context triple: [Palo Alto station, hasFormerOwner, Peninsula Corridor Joint Powers Board (right-of-way predecessor entities)]
  • A. Peninsula Corridor Joint Powers Board chosen
    The Peninsula Corridor Joint Powers Board is a public agency formed by Bay Area counties to oversee and manage the Caltrain commuter rail service along the San Francisco Peninsula.
  • B. Capitol Corridor Joint Powers Authority
    The Capitol Corridor Joint Powers Authority is a California-based public agency that oversees and manages Amtrak’s Capitol Corridor intercity passenger rail service between the Sacramento–San Francisco Bay Area region and surrounding communities.
  • C. Peninsula rail corridor
    The Peninsula rail corridor is the major rail line running through California’s San Francisco Peninsula, carrying both commuter and intercity trains between San Francisco and the South Bay.
  • D. San Joaquin Regional Rail Commission
    The San Joaquin Regional Rail Commission is a public agency in California responsible for planning, managing, and overseeing regional passenger rail services in the San Joaquin Valley and surrounding areas.
  • E. Transportation Planning Board
    The Transportation Planning Board is the metropolitan planning organization responsible for coordinating regional transportation planning and policy for the greater Washington, D.C. area.
  • 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_69a493ee1f908190992b5f0d1b04459b completed March 1, 2026, 7:30 p.m.
NER Named-entity recognition batch_69a4bb7320f88190a8428946541df157 completed March 1, 2026, 10:19 p.m.
NED1 Entity disambiguation (via context triple) batch_69ac42a51c208190a9a603100ed7f5dc completed March 7, 2026, 3:22 p.m.
Created at: March 1, 2026, 7:42 p.m.