Triple

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).

Phrase: Columbia River system | Statement: [Duncan Dam, regulatesFlowFor, Columbia River system]

Target entity: Columbia River system
Context triple: [Duncan Dam, regulatesFlowFor, Columbia River system]

• A. Columbia–Snake River System
  The Columbia–Snake River System is a major interconnected network of rivers and reservoirs in the Pacific Northwest that serves as a critical corridor for navigation, hydropower generation, irrigation, and regional commerce.
• B. 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.
• C. 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.
• D. 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.
• E. Sauk–Suiattle River watershed
  The Sauk–Suiattle River watershed is a river basin in the North Cascades of Washington State that drains the Sauk and Suiattle river systems and supports diverse forested and mountainous ecosystems.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.