Triple

T5341262
Position Surface form Disambiguated ID Type / Status
Subject Lewis and Clark Expedition E123948 entity
Predicate routeFollowed P2127 FINISHED
Object Columbia River E12075 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: Columbia River | Statement: [Lewis and Clark Expedition, routeFollowed, 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: Columbia River
Context triple: [Lewis and Clark Expedition, routeFollowed, Columbia River]
  • A. Columbia River chosen
    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.
  • B. Lewis and Clark River
    The Lewis and Clark River is a small coastal river in northwestern Oregon that flows through forested terrain into the Youngs River near Astoria, historically associated with the Lewis and Clark Expedition.
  • C. Columbia River Basin
    The Columbia River Basin is a vast watershed in the Pacific Northwest that drains portions of seven U.S. states and British Columbia into the Columbia River, supporting major ecosystems, agriculture, and hydroelectric power.
  • D. Green River
    The Green River is a major tributary of the Colorado River that flows through Wyoming, Utah, and Colorado, carving deep canyons and shaping much of the Colorado Plateau’s dramatic landscape.
  • E. Green River
    Green River was an influential mid-1980s Seattle grunge band whose members later formed prominent groups like Pearl Jam and Mudhoney.
  • 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_69bd91aab9348190a373b30bb305f933 ner completed
NED1 batch_69bf186b92a48190a167a5712667809b ned_source_triple completed
Created at: March 20, 2026, 2 p.m.