Triple

T18065789
Position Surface form Disambiguated ID Type / Status
Subject San Francisco Municipal Railway substations E432288 entity
Predicate poweredSystem P109257 FINISHED
Object San Francisco streetcar network NE NERFINISHED

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: San Francisco streetcar network | Statement: [San Francisco Municipal Railway substations, poweredSystem, San Francisco streetcar network]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: San Francisco streetcar network
Context triple: [San Francisco Municipal Railway substations, poweredSystem, San Francisco streetcar 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. 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.
  • C. San Francisco Muni historic streetcars
    San Francisco Muni historic streetcars are a fleet of restored vintage streetcars from around the world that operate as regular public transit along San Francisco’s F-Market & Wharves and E-Embarcadero lines.
  • D. 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.
  • E. Muni Metro
    Muni Metro is San Francisco’s light rail and streetcar system, forming a core part of the city’s public transit network.
  • 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 streetcar network
Target entity description: The San Francisco streetcar network is a historic urban transit system that operates electric streetcars along key corridors, including the city’s iconic F-line and other light rail routes.
  • 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. 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.
  • C. San Francisco Muni historic streetcars chosen
    San Francisco Muni historic streetcars are a fleet of restored vintage streetcars from around the world that operate as regular public transit along San Francisco’s F-Market & Wharves and E-Embarcadero lines.
  • D. 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.
  • E. Muni Metro
    Muni Metro is San Francisco’s light rail and streetcar system, forming a core part of the city’s public transit network.
  • F. None of above.
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: poweredSystem
Context triple: [San Francisco Municipal Railway substations, poweredSystem, San Francisco streetcar network]
  • A. powerConversionSystem
    Indicates a system that transforms electrical power from one form, level, or source into another to meet specific usage or distribution requirements.
  • B. powerPack
    Indicates that one entity serves as a power pack or portable power source for another entity.
  • C. powersType
    Indicates that one entity has a specific type or category of power or ability in relation to another entity.
  • D. powering chosen
    Indicates that one entity supplies energy or power that enables another entity to operate or function.
  • E. powerInterface
    Indicates that one entity serves as a power-providing interface or connection point for another entity, enabling the transfer or supply of electrical power.
  • F. None of above.

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_69d8b9070cac81909fa9473fb1c3f1c7 completed April 10, 2026, 8:47 a.m.
NER Named-entity recognition batch_69e4cce81de88190bd94d4ccee3e180c completed April 19, 2026, 12:39 p.m.
PD Predicate disambiguation batch_69e3f90c652481908133a73106d78919 completed April 18, 2026, 9:35 p.m.
Created at: April 10, 2026, 10:26 a.m.