Columbia River estuary

Target entity: Columbia River estuary
Context triple: [Clatsop County, Oregon, contains, Columbia River estuary]

• A. Klamath River estuary
  The Klamath River estuary is a biologically rich coastal river mouth in northern California where the Klamath River meets the Pacific Ocean, supporting diverse fish, bird, and marine mammal populations.
• B. Oregon estuary network
  The Oregon estuary network is a system of interconnected coastal estuaries along the Oregon coast that provide critical habitats, support fisheries, and play key roles in regional ecology and water quality.
• C. River Lee estuary
  The River Lee estuary is the tidal lower reach of the River Lee in County Cork, Ireland, where the river broadens and meets Cork Harbour before flowing into the Celtic Sea.
• D. Elkhorn Slough
  Elkhorn Slough is a major tidal wetland and estuarine reserve on California’s central coast, renowned for its rich biodiversity and critical habitat for migratory birds and marine life.
• E. Orne River estuary
  The Orne River estuary is a coastal inlet in Normandy, France, where the Orne River meets the English Channel near key D-Day landing areas.
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Target entity: Columbia River estuary
Target entity description: The Columbia River estuary is the broad, tidally influenced transition zone where the Columbia River meets the Pacific Ocean, supporting rich ecosystems, major shipping routes, and coastal communities in the Pacific Northwest.

• A. Klamath River estuary
  The Klamath River estuary is a biologically rich coastal river mouth in northern California where the Klamath River meets the Pacific Ocean, supporting diverse fish, bird, and marine mammal populations.
• B. Oregon estuary network
  The Oregon estuary network is a system of interconnected coastal estuaries along the Oregon coast that provide critical habitats, support fisheries, and play key roles in regional ecology and water quality.
• C. River Lee estuary
  The River Lee estuary is the tidal lower reach of the River Lee in County Cork, Ireland, where the river broadens and meets Cork Harbour before flowing into the Celtic Sea.
• D. Elkhorn Slough
  Elkhorn Slough is a major tidal wetland and estuarine reserve on California’s central coast, renowned for its rich biodiversity and critical habitat for migratory birds and marine life.
• E. Orne River estuary
  The Orne River estuary is a coastal inlet in Normandy, France, where the Orne River meets the English Channel near key D-Day landing areas.
• F. None of above. chosen