Triple

T1540416
Position Surface form Disambiguated ID Type / Status
Subject San Francisco–Oakland Bay Bridge E32851 entity
Predicate parallelTo P1868 FINISHED
Object San Francisco–Oakland Transbay Tube E84112 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–Oakland Transbay Tube | Statement: [San Francisco–Oakland Bay Bridge, parallelTo, San Francisco–Oakland Transbay Tube]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: San Francisco–Oakland Transbay Tube
Context triple: [San Francisco–Oakland Bay Bridge, parallelTo, San Francisco–Oakland Transbay Tube]
  • A. Transbay Tube chosen
    The Transbay Tube is an underwater rail tunnel beneath San Francisco Bay that carries BART trains between San Francisco and Oakland.
  • B. Yerba Buena Tunnel
    Yerba Buena Tunnel is a vehicular tunnel in the San Francisco Bay that carries the San Francisco–Oakland Bay Bridge through Yerba Buena Island, connecting its eastern and western spans.
  • C. San Francisco–Oakland Bay Bridge
    The San Francisco–Oakland Bay Bridge is a major multi-span suspension and cantilever bridge connecting San Francisco and Oakland, serving as one of the primary highway links across the central part of the San Francisco Bay.
  • D. San Mateo–Hayward Bridge
    The San Mateo–Hayward Bridge is a major vehicular bridge in the San Francisco Bay Area that carries traffic across the bay between the San Mateo Peninsula and the East Bay.
  • E. Fremont Bridge
    The Fremont Bridge is a prominent tied-arch freeway bridge in Portland, Oregon, known for carrying Interstate 405 across the Willamette River and being one of the city's most recognizable landmarks.
  • 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_69a885ed29088190a3c2d5a3d100c16e completed March 4, 2026, 7:20 p.m.
NER Named-entity recognition batch_69a9083c942481909168394b6674d82b completed March 5, 2026, 4:36 a.m.
NED1 Entity disambiguation (via context triple) batch_69ad37092b648190a339114ffc37d1db completed March 8, 2026, 8:44 a.m.
Created at: March 4, 2026, 7:26 p.m.