Ussuri River

Target entity: Ussuri River
Context triple: [Amur River, majorTributary, Ussuri River]

• A. Amur River
  The Amur River is a major waterway in northeastern Asia that forms much of the border between Russia and China and supports rich ecosystems and regional trade.
• B. Argun River
  The Argun River is a major river in Northeast Asia that forms part of the border between Russia and China and serves as one of the headwaters of the Amur River.
• C. Yenisei River
  The Yenisei River is one of the longest rivers in Asia, flowing northward through Siberia to the Arctic Ocean and forming a major part of the central Eurasian river system.
• D. Songhua River
  The Songhua River is a major river in northeastern China that flows through Jilin and Heilongjiang provinces and plays a key role in regional transportation, agriculture, and hydropower.
• E. Lena River
  The Lena River is one of the longest rivers in the world, flowing through Siberia in northeastern Russia to the Arctic Ocean.
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Target entity: Ussuri River
Target entity description: The Ussuri River is a major river in Northeast Asia that forms part of the border between Russia and China and is known for its rich biodiversity and historical geopolitical significance.

• A. Amur River
  The Amur River is a major waterway in northeastern Asia that forms much of the border between Russia and China and supports rich ecosystems and regional trade.
• B. Argun River
  The Argun River is a major river in Northeast Asia that forms part of the border between Russia and China and serves as one of the headwaters of the Amur River.
• C. Yenisei River
  The Yenisei River is one of the longest rivers in Asia, flowing northward through Siberia to the Arctic Ocean and forming a major part of the central Eurasian river system.
• D. Songhua River
  The Songhua River is a major river in northeastern China that flows through Jilin and Heilongjiang provinces and plays a key role in regional transportation, agriculture, and hydropower.
• E. Lena River
  The Lena River is one of the longest rivers in the world, flowing through Siberia in northeastern Russia to the Arctic Ocean.
• F. None of above. chosen