Triple

T2839351
Position Surface form Disambiguated ID Type / Status
Subject PCJPB E62426 entity
Predicate fullName P16 FINISHED
Object Peninsula Corridor Joint Powers Board 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 | Statement: [PCJPB, fullName, Peninsula Corridor Joint Powers Board]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Peninsula Corridor Joint Powers Board
Context triple: [PCJPB, fullName, Peninsula Corridor Joint Powers Board]
  • 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. Metropolitan Transportation Commission
    The Metropolitan Transportation Commission is the regional planning, financing, and coordinating agency for transportation in the nine-county San Francisco Bay Area.
  • 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. Santa Clara Valley Transportation Authority
    The Santa Clara Valley Transportation Authority is the public transit agency that operates bus, light rail, and related transportation services throughout Santa Clara County in California’s Silicon Valley.
  • 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_69ab4c3d16bc81908b3a1c98fbd287fe completed March 6, 2026, 9:50 p.m.
NER Named-entity recognition batch_69abdef145f08190be8556bc696ba3ab completed March 7, 2026, 8:16 a.m.
NED1 Entity disambiguation (via context triple) batch_69afe8cf32d08190bda89a513082813f completed March 10, 2026, 9:47 a.m.
Created at: March 6, 2026, 10:01 p.m.