Triple

T5341238
Position Surface form Disambiguated ID Type / Status
Subject Lewis and Clark Expedition E123948 entity
Predicate destination P1522 FINISHED
Object Mouth of the Columbia River E103651 NE FINISHED

Named-entity recognition

Before disambiguation, gpt-5-mini classified whether the object phrase is a named entity — the step behind the object's NE type shown above.

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: Mouth of the Columbia River | Statement: [Lewis and Clark Expedition, destination, Mouth of the Columbia River]

Disambiguation candidates (1 decision)

The exact options the model was shown at each disambiguation step, with the option it chose highlighted — the evidence behind this triple's disambiguated ids.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Mouth of the Columbia River
Context triple: [Lewis and Clark Expedition, destination, Mouth of the Columbia River]
  • A. Columbia River estuary chosen
    The Columbia River estuary is the broad, tidally influenced transition zone where the Columbia River meets the Pacific Ocean, supporting rich ecosystems, major shipping routes, and coastal communities in the Pacific Northwest.
  • B. Columbia River Bar
    The Columbia River Bar is a notoriously dangerous sandbar and shipping passage at the mouth of the Columbia River, often called the "Graveyard of the Pacific" due to its treacherous waves and frequent shipwrecks.
  • C. Mattole River mouth
    The Mattole River mouth is the remote coastal area where the Mattole River empties into the Pacific Ocean along Northern California’s rugged Lost Coast.
  • D. Columbia River
    The Columbia River is a major river of the Pacific Northwest that forms much of the border between Oregon and Washington and is vital for hydroelectric power, transportation, and regional ecosystems.
  • E. Strait of Juan de Fuca watershed
    The Strait of Juan de Fuca watershed is the drainage area that channels freshwater from surrounding rivers and lakes into the Strait of Juan de Fuca between Washington State and Vancouver Island.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (3 batches)

Stage Batch ID Job type Status
creating batch_69bd464b07f8819095aa76577c9829e4 elicitation completed
NER batch_69bd85cb250c81908a48e4e2bbebbdb9 ner completed
NED1 batch_69bf18c8db388190a31f55854e7370fc ned_source_triple completed
Created at: March 20, 2026, 2 p.m.