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: Koyukuk River region of Alaska | Statement: [Henry T. Allen, exploredRegion, Koyukuk River region of Alaska]

Target entity: Koyukuk River region of Alaska
Context triple: [Henry T. Allen, exploredRegion, Koyukuk River region of Alaska]

• A. Koyukuk River region in Alaska chosen
  The Koyukuk River region in Alaska is a remote, subarctic area of boreal forest and river valleys that forms part of the traditional homeland of Koyukon Athabaskan peoples.
• B. Nushagak River basin
  The Nushagak River basin is a major watershed in southwestern Alaska known for its pristine ecosystems and highly productive wild salmon fisheries.
• C. Koyukon
  Koyukon is an Athabaskan (Dene) language traditionally spoken by the Koyukon people of interior Alaska along the Koyukuk and middle Yukon rivers.
• D. Onon River region
  The Onon River region is a historical area in northeastern Mongolia and southeastern Russia known as the traditional homeland of Genghis Khan and the early Mongol tribes.
• E. Yukon River region
  The Yukon River region is a vast subarctic area of northwestern Canada and Alaska defined by the Yukon River and its tributaries, known for its Indigenous cultures, remote wilderness, and historical role in northern trade and the Klondike Gold Rush.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.