Mackenzie River

Target entity: Mackenzie River
Context triple: [North America, hasMajorRiver, Mackenzie River]

• A. Yukon River
  The Yukon River is a major waterway in northwestern North America that flows through Canada’s Yukon Territory and Alaska to the Bering Sea, historically significant for transportation, Indigenous cultures, and the Klondike Gold Rush.
• B. Saint John
  Saint John is a small, largely undeveloped Caribbean island known for its pristine beaches and extensive national parkland within the U.S. Virgin Islands.
• C. Columbia River
  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. Saint Lawrence River
  The Saint Lawrence River is a major North American waterway that connects the Great Lakes to the Atlantic Ocean and serves as a vital commercial and cultural corridor for Canada and the United States.
• E. Missouri River
  The Missouri River is the longest river in North America, flowing from the Rocky Mountains of western Montana to join the Mississippi River near St. Louis.
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Target entity: Mackenzie River
Target entity description: The Mackenzie River is the longest river system in Canada, flowing through the Northwest Territories to the Arctic Ocean and draining a vast portion of northwestern North America.

• A. Yukon River
  The Yukon River is a major waterway in northwestern North America that flows through Canada’s Yukon Territory and Alaska to the Bering Sea, historically significant for transportation, Indigenous cultures, and the Klondike Gold Rush.
• B. Saint John
  Saint John is a small, largely undeveloped Caribbean island known for its pristine beaches and extensive national parkland within the U.S. Virgin Islands.
• C. Columbia River
  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. Saint Lawrence River
  The Saint Lawrence River is a major North American waterway that connects the Great Lakes to the Atlantic Ocean and serves as a vital commercial and cultural corridor for Canada and the United States.
• E. Missouri River
  The Missouri River is the longest river in North America, flowing from the Rocky Mountains of western Montana to join the Mississippi River near St. Louis.
• F. None of above. chosen