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: North Saskatchewan River valley | Statement: [Prince Albert, Saskatchewan, hasRiverValley, North Saskatchewan River valley]

Target entity: North Saskatchewan River valley
Context triple: [Prince Albert, Saskatchewan, hasRiverValley, North Saskatchewan River valley]

• A. South Saskatchewan River
  The South Saskatchewan River is a major river in western Canada that flows through the Canadian Prairies, formed by the confluence of the Bow and Oldman rivers and ultimately contributing to the Saskatchewan River system.
• B. North Saskatchewan River chosen
  The North Saskatchewan River is a major Canadian river that originates in the Rocky Mountains and flows eastward through Alberta and Saskatchewan, including the city of Edmonton, before joining the Saskatchewan River system.
• C. Milk River region
  The Milk River region is a historical homeland area in the northern Great Plains of North America, associated with Indigenous peoples such as the Gros Ventre.
• D. Saskatchewan River
  The Saskatchewan River is a major waterway in Western Canada that flows eastward from the Rocky Mountains through the provinces of Alberta, Saskatchewan, and Manitoba before emptying into Lake Winnipeg.
• E. Assiniboine River
  The Assiniboine River is a major prairie river in Western Canada that flows through Saskatchewan and Manitoba before joining the Red River at Winnipeg.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.