Triple

T7496218
Position Surface form Disambiguated ID Type / Status
Subject Sonoma–Marin Area Rail Transit E177135 entity
Predicate governingBody P46 FINISHED
Object Sonoma–Marin Area Rail Transit District Board of Directors
The Sonoma–Marin Area Rail Transit District Board of Directors is the governing body that oversees policy, planning, and operations for the SMART commuter rail system serving Sonoma and Marin counties in California.
E177135 NE FINISHED

How this triple was built (4 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 District Board of Directors | Statement: [Sonoma–Marin Area Rail Transit, governingBody, Sonoma–Marin Area Rail Transit District Board of Directors]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Sonoma–Marin Area Rail Transit District Board of Directors
Context triple: [Sonoma–Marin Area Rail Transit, governingBody, Sonoma–Marin Area Rail Transit District Board of Directors]
  • A. San Francisco Municipal Transportation Agency Board of Directors
    The San Francisco Municipal Transportation Agency Board of Directors is the governing body that sets policy and oversees the operation of the city’s public transportation and related mobility services.
  • B. Sonoma–Marin Area Rail Transit
    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.
  • C. Board of Directors of the San Mateo County Transit District
    The Board of Directors of the San Mateo County Transit District is the policy-making and oversight body that directs and supervises the operations, budget, and strategic planning of SamTrans public transportation services in San Mateo County, California.
  • 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. San Francisco County Transportation Authority
    The San Francisco County Transportation Authority is the county’s transportation planning and funding agency, responsible for developing and overseeing major transit, roadway, and mobility projects in San Francisco.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg Description generation gpt-5.1
Instruction
Generate a one-sentence description of the target entity. 
You are given a context triple in the form (subject, predicate, object), where the object is the target entity. 
# Instructions
Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. 
Avoid repeating the information from the triple, unless really essential.
# Response Format
Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: Sonoma–Marin Area Rail Transit District Board of Directors
Triple: [Sonoma–Marin Area Rail Transit, governingBody, Sonoma–Marin Area Rail Transit District Board of Directors]
Generated description
The Sonoma–Marin Area Rail Transit District Board of Directors is the governing body that oversees policy, planning, and operations for the SMART commuter rail system serving Sonoma and Marin counties in California.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Sonoma–Marin Area Rail Transit District Board of Directors
Target entity description: The Sonoma–Marin Area Rail Transit District Board of Directors is the governing body that oversees policy, planning, and operations for the SMART commuter rail system serving Sonoma and Marin counties in California.
  • A. San Francisco Municipal Transportation Agency Board of Directors
    The San Francisco Municipal Transportation Agency Board of Directors is the governing body that sets policy and oversees the operation of the city’s public transportation and related mobility services.
  • B. 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.
  • C. Board of Directors of the San Mateo County Transit District
    The Board of Directors of the San Mateo County Transit District is the policy-making and oversight body that directs and supervises the operations, budget, and strategic planning of SamTrans public transportation services in San Mateo County, California.
  • 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. San Francisco County Transportation Authority
    The San Francisco County Transportation Authority is the county’s transportation planning and funding agency, responsible for developing and overseeing major transit, roadway, and mobility projects in San Francisco.
  • F. None of above.

Provenance (5 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_69c69f2583808190bd1a4936c42a5815 completed March 27, 2026, 3:15 p.m.
NER Named-entity recognition batch_69c6f57c86948190aa8ee765bd497850 completed March 27, 2026, 9:24 p.m.
NED1 Entity disambiguation (via context triple) batch_69c83c8686cc8190bb1f7b09cdbebcf7 completed March 28, 2026, 8:39 p.m.
NEDg Description generation batch_69c83e31d54c8190aed9279181f1db2b completed March 28, 2026, 8:46 p.m.
NED2 Entity disambiguation (via description) batch_69c83ef9ce408190907a62c9d0a6dc16 completed March 28, 2026, 8:50 p.m.
Created at: March 27, 2026, 3:43 p.m.