Triple

T88422
Position Surface form Disambiguated ID Type / Status
Subject San Jose E1776 entity
Predicate hasPublicTransitSystem P105 FINISHED
Object 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.
 E14319 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: Santa Clara Valley Transportation Authority | Statement: [San Jose, hasPublicTransitSystem, Santa Clara Valley Transportation Authority]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Santa Clara Valley Transportation Authority
Context triple: [San Jose, hasPublicTransitSystem, Santa Clara Valley Transportation Authority]
  • A. Los Angeles County Metropolitan Transportation Authority
    The Los Angeles County Metropolitan Transportation Authority is the primary public transit agency for Los Angeles County, operating and overseeing the region’s bus and rail systems.
  • B. Caltrain
    Caltrain is a commuter rail service on the San Francisco Peninsula and in the Santa Clara Valley, connecting San Francisco to San Jose and Gilroy in California.
  • C. Peninsula Corridor Joint Powers Board
    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.
  • D. BART
    BART (Bay Area Rapid Transit) is a major rapid transit system serving the San Francisco Bay Area, linking cities like San Francisco, Oakland, and Berkeley with surrounding suburbs and regional transit networks.
  • E. Los Angeles Metro Rail
    Los Angeles Metro Rail is a rapid transit system serving Los Angeles County, California, consisting of multiple light rail and subway lines that connect key neighborhoods, business districts, and regional destinations.
  • 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: Santa Clara Valley Transportation Authority
Triple: [San Jose, hasPublicTransitSystem, Santa Clara Valley Transportation Authority]
Generated description
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.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Santa Clara Valley Transportation Authority
Target entity description: 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.
  • A. Los Angeles County Metropolitan Transportation Authority
    The Los Angeles County Metropolitan Transportation Authority is the primary public transit agency for Los Angeles County, operating and overseeing the region’s bus and rail systems.
  • B. Caltrain
    Caltrain is a commuter rail service on the San Francisco Peninsula and in the Santa Clara Valley, connecting San Francisco to San Jose and Gilroy in California.
  • C. Peninsula Corridor Joint Powers Board
    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.
  • D. BART
    BART (Bay Area Rapid Transit) is a major rapid transit system serving the San Francisco Bay Area, linking cities like San Francisco, Oakland, and Berkeley with surrounding suburbs and regional transit networks.
  • E. Los Angeles Metro Rail
    Los Angeles Metro Rail is a rapid transit system serving Los Angeles County, California, consisting of multiple light rail and subway lines that connect key neighborhoods, business districts, and regional destinations.
  • F. None of above. chosen

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_69a24d1a97dc819094e6c021fe9b05a7 completed Feb. 28, 2026, 2:04 a.m.
NER Named-entity recognition batch_69a24f6997c081908b202f937eb2b14f completed Feb. 28, 2026, 2:14 a.m.
NED1 Entity disambiguation (via context triple) batch_69a29e45d6488190bc982137255c79f9 completed Feb. 28, 2026, 7:50 a.m.
NEDg Description generation batch_69a2a04b1d008190aa1b353cb239de69 completed Feb. 28, 2026, 7:59 a.m.
NED2 Entity disambiguation (via description) batch_69a2a17dd35c81909b90cae5ad204aae completed Feb. 28, 2026, 8:04 a.m.
Created at: Feb. 28, 2026, 2:07 a.m.