Triple

T15574306
Position Surface form Disambiguated ID Type / Status
Subject Twin Peaks Tunnel E374328 entity
Predicate operator P179 FINISHED
Object San Francisco Municipal Transportation Agency E129483 NE FINISHED

Named-entity recognition

Before disambiguation, gpt-5-mini classified whether the object phrase is a named entity — the step behind the object's NE type shown above.

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: San Francisco Municipal Transportation Agency | Statement: [Twin Peaks Tunnel, operator, San Francisco Municipal Transportation Agency]

Disambiguation candidates (1 decision)

The exact options the model was shown at each disambiguation step, with the option it chose highlighted — the evidence behind this triple's disambiguated ids.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: San Francisco Municipal Transportation Agency
Context triple: [Twin Peaks Tunnel, operator, San Francisco Municipal Transportation Agency]
  • A. San Francisco Municipal Transportation Agency chosen
    The San Francisco Municipal Transportation Agency is the city department responsible for managing and operating San Francisco’s public transit, parking, traffic, and street infrastructure.
  • B. 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.
  • C. San Francisco Muni
    San Francisco Muni is the primary public transportation system in San Francisco, operating the city’s network of buses, light rail, historic streetcars, and cable cars.
  • D. Solano Transportation Authority
    Solano Transportation Authority is a public agency that plans, funds, and coordinates transportation projects and services within Solano County, California.
  • 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)

Stage Batch ID Job type Status
creating batch_69d85ccd575081908909b71a3f3e3a61 elicitation completed
NER batch_69e04e2140388190a8df7b835eaa72ce ner completed
NED1 batch_69ff90887ef48190b6148830803669dd ned_source_triple completed
Created at: April 10, 2026, 4:10 a.m.