Columbia River

Target entity: Columbia River
Context triple: [Portland, Oregon, United States, locatedOnRiver, Columbia River]

• A. Willamette River
  The Willamette River is a major waterway in northwestern Oregon that flows north through the Willamette Valley and the city of Portland before joining the Columbia River.
• B. Hudson River
  The Hudson River is a major waterway in eastern New York State that flows south past cities like Albany and New York City before emptying into the Atlantic Ocean at New York Harbor.
• C. Brownson Deep
  Brownson Deep is the deepest known point in the Atlantic Ocean, located within the Puerto Rico Trench.
• D. Charles River
  The Charles River is a prominent river in eastern Massachusetts that flows between Boston and Cambridge and is known for its scenic banks, recreational activities, and role in the region’s history and culture.
• E. Great Lakes–St. Lawrence system
  The Great Lakes–St. Lawrence system is a vast interconnected chain of freshwater lakes and the St. Lawrence River that forms one of the world’s largest inland waterways, linking the interior of North America to the Atlantic Ocean.
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Target entity: Columbia River
Target entity description: 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.

• A. Willamette River
  The Willamette River is a major waterway in northwestern Oregon that flows north through the Willamette Valley and the city of Portland before joining the Columbia River.
• B. Hudson River
  The Hudson River is a major waterway in eastern New York State that flows south past cities like Albany and New York City before emptying into the Atlantic Ocean at New York Harbor.
• C. Brownson Deep
  Brownson Deep is the deepest known point in the Atlantic Ocean, located within the Puerto Rico Trench.
• D. Charles River
  The Charles River is a prominent river in eastern Massachusetts that flows between Boston and Cambridge and is known for its scenic banks, recreational activities, and role in the region’s history and culture.
• E. Great Lakes–St. Lawrence system
  The Great Lakes–St. Lawrence system is a vast interconnected chain of freshwater lakes and the St. Lawrence River that forms one of the world’s largest inland waterways, linking the interior of North America to the Atlantic Ocean.
• F. None of above. chosen