Triple

T1741498
Position Surface form Disambiguated ID Type / Status
Subject Market Street surface tracks E38242 entity
Predicate partOf P40 FINISHED
Object San Francisco Muni light rail network E23810 NE FINISHED

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 Muni light rail network | Statement: [Market Street surface tracks, partOf, San Francisco Muni light rail network]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: San Francisco Muni light rail network
Context triple: [Market Street surface tracks, partOf, San Francisco Muni light rail network]
  • A. San Francisco Muni chosen
    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.
  • B. 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.
  • C. BART Antioch–SFO+Millbrae line
    The BART Antioch–SFO+Millbrae line is a Bay Area Rapid Transit service that runs between Antioch in the East Bay and San Francisco International Airport and Millbrae, connecting suburban communities with major regional transit hubs.
  • D. San Francisco Bay Area transit network
    The San Francisco Bay Area transit network is an interconnected system of buses, trains, ferries, and light rail services spanning multiple counties around the San Francisco Bay.
  • 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.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

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_69a8862b01a48190ab47209063af82d9 completed March 4, 2026, 7:21 p.m.
NER Named-entity recognition batch_69aa63c6d21c8190809bedaa798e2b14 completed March 6, 2026, 5:19 a.m.
NED1 Entity disambiguation (via context triple) batch_69adf3b9a2f4819082ca2e9f838f7b9e completed March 8, 2026, 10:10 p.m.
Created at: March 4, 2026, 7:30 p.m.