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: Nahanni River watershed | Statement: [Virginia Falls, partOf, Nahanni River watershed]

Target entity: Nahanni River watershed
Context triple: [Virginia Falls, partOf, Nahanni River watershed]

• A. South Nahanni River chosen
  The South Nahanni River is a renowned wild river in Canada’s Northwest Territories, celebrated for its deep canyons, Virginia Falls, and central role in the remote Nahanni National Park Reserve.
• B. Mackenzie River Basin
  The Mackenzie River Basin is a vast watershed in northwestern Canada that collects waters from much of the boreal forest and Arctic regions before draining into the Arctic Ocean.
• C. Nishnabotna River watershed
  The Nishnabotna River watershed is a drainage basin in southwestern Iowa that collects and channels water from numerous streams and rivers into the Nishnabotna River system.
• D. Coppermine River
  The Coppermine River is a major river in northern Canada that flows through the Northwest Territories and Nunavut to the Arctic Ocean, historically significant as a route explored during early European expeditions into the Arctic.
• E. Kaskawulsh River
  The Kaskawulsh River is a glacial river in the Yukon that drains the Kaskawulsh Glacier and flows through remote mountainous terrain before joining the Alsek River.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.