Triple

T18065790
Position Surface form Disambiguated ID Type / Status
Subject San Francisco Municipal Railway substations E432288 entity
Predicate poweredSystem P109257 FINISHED
Object San Francisco trolleybus network — NE NERFINISHED

How this triple was built (3 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: San Francisco trolleybus network | Statement: [San Francisco Municipal Railway substations, poweredSystem, San Francisco trolleybus network]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: San Francisco trolleybus network
Context triple: [San Francisco Municipal Railway substations, poweredSystem, San Francisco trolleybus network]
  • A. East Bay streetcar network
    The East Bay streetcar network was an early 20th-century electric streetcar system serving cities across California’s East Bay, forming a key part of the region’s urban transit before the rise of buses and automobiles.
  • B. SolanoExpress bus system
    The SolanoExpress bus system is a regional transit network providing intercity bus service connecting Solano County communities with major nearby destinations and transit hubs.
  • 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. Muni Metro
    Muni Metro is San Francisco’s light rail and streetcar system, forming a core part of the city’s public transit network.
  • E. San Francisco cable car system
    The San Francisco cable car system is a historic manually operated streetcar network and iconic symbol of the city, known for its steep routes and status as the world’s last permanently operational cable car system.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: San Francisco trolleybus network
Target entity description: The San Francisco trolleybus network is an electric public transit system of rubber-tired buses drawing power from overhead wires to serve routes throughout San Francisco.
  • A. East Bay streetcar network
    The East Bay streetcar network was an early 20th-century electric streetcar system serving cities across California’s East Bay, forming a key part of the region’s urban transit before the rise of buses and automobiles.
  • B. SolanoExpress bus system
    The SolanoExpress bus system is a regional transit network providing intercity bus service connecting Solano County communities with major nearby destinations and transit hubs.
  • 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. Muni Metro
    Muni Metro is San Francisco’s light rail and streetcar system, forming a core part of the city’s public transit network.
  • E. San Francisco cable car system
    The San Francisco cable car system is a historic manually operated streetcar network and iconic symbol of the city, known for its steep routes and status as the world’s last permanently operational cable car system.
  • F. None of above. chosen

Provenance (2 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_69d8b9070cac81909fa9473fb1c3f1c7 completed April 10, 2026, 8:47 a.m.
NER Named-entity recognition batch_69e4cce81de88190bd94d4ccee3e180c completed April 19, 2026, 12:39 p.m.
Created at: April 10, 2026, 10:26 a.m.