Triple

T20912883
Position Surface form Disambiguated ID Type / Status
Subject Alaskan Way Viaduct E514992 entity
Predicate replacedBy P101 FINISHED
Object Alaskan Way Viaduct replacement tunnel 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: Alaskan Way Viaduct replacement tunnel | Statement: [Alaskan Way Viaduct, replacedBy, Alaskan Way Viaduct replacement tunnel]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Alaskan Way Viaduct replacement tunnel
Context triple: [Alaskan Way Viaduct, replacedBy, Alaskan Way Viaduct replacement tunnel]
  • A. Alaskan Way Viaduct
    The Alaskan Way Viaduct was an elevated highway along Seattle’s waterfront that carried a section of State Route 99 before being demolished due to seismic vulnerability and replaced by a tunnel.
  • B. Fourth Street Viaduct
    The Fourth Street Viaduct is a historic bridge in Los Angeles that carries Fourth Street over the Los Angeles River, forming part of the city’s iconic river viaduct system.
  • C. Downtown Seattle Transit Tunnel
    The Downtown Seattle Transit Tunnel is a former dual-use bus and light rail tunnel running beneath central Seattle that served as a major rapid transit corridor through the city’s downtown.
  • D. Transbay Tube
    The Transbay Tube is an underwater rail tunnel beneath San Francisco Bay that carries BART trains between San Francisco and Oakland.
  • E. First Street Viaduct
    The First Street Viaduct is a historic bridge in Los Angeles that carries First Street over the Los Angeles River, serving as a key link between downtown and Boyle Heights.
  • 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: Alaskan Way Viaduct replacement tunnel
Target entity description: The Alaskan Way Viaduct replacement tunnel is a deep-bore highway tunnel in downtown Seattle built to carry State Route 99 traffic underground along the waterfront, improving safety and opening the surface for redevelopment.
  • A. Alaskan Way Viaduct chosen
    The Alaskan Way Viaduct was an elevated highway along Seattle’s waterfront that carried a section of State Route 99 before being demolished due to seismic vulnerability and replaced by a tunnel.
  • B. Fourth Street Viaduct
    The Fourth Street Viaduct is a historic bridge in Los Angeles that carries Fourth Street over the Los Angeles River, forming part of the city’s iconic river viaduct system.
  • C. Downtown Seattle Transit Tunnel
    The Downtown Seattle Transit Tunnel is a former dual-use bus and light rail tunnel running beneath central Seattle that served as a major rapid transit corridor through the city’s downtown.
  • D. Transbay Tube
    The Transbay Tube is an underwater rail tunnel beneath San Francisco Bay that carries BART trains between San Francisco and Oakland.
  • E. First Street Viaduct
    The First Street Viaduct is a historic bridge in Los Angeles that carries First Street over the Los Angeles River, serving as a key link between downtown and Boyle Heights.
  • F. None of above.

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_69e0b4f9d5ec8190bb2bd27350ed341c completed April 16, 2026, 10:07 a.m.
NER Named-entity recognition batch_69e6ec60d3288190897a087bbdd4f005 completed April 21, 2026, 3:17 a.m.
Created at: April 16, 2026, 12:48 p.m.