Triple

T19285192
Position Surface form Disambiguated ID Type / Status
Subject Brooklyn streetcar E482291 entity
Predicate partOf P40 FINISHED
Object San Francisco vintage streetcar fleet — NE NERFINISHED

How this triple was built (2 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 vintage streetcar fleet | Statement: [Brooklyn streetcar, partOf, San Francisco vintage streetcar fleet]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: San Francisco vintage streetcar fleet
Context triple: [Brooklyn streetcar, partOf, San Francisco vintage streetcar fleet]
  • A. 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.
  • 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 trolleybus network
    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.
  • D. 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.
  • E. San Francisco Cable Car Museum
    The San Francisco Cable Car Museum is a historic institution in San Francisco that showcases the city’s iconic cable car system, featuring preserved cars, machinery, and exhibits on their engineering and history.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

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_69d8e8cf61b0819096fe3e4107827c4e completed April 10, 2026, 12:10 p.m.
NER Named-entity recognition batch_69e5fc0152d48190b92272d4c7caa708 completed April 20, 2026, 10:12 a.m.
Created at: April 10, 2026, 1:30 p.m.