Tigris–Euphrates river system

Target entity: Tigris–Euphrates river system
Context triple: [Tigris, riverSystem, Tigris–Euphrates river system]

• A. Euphrates
  The Euphrates is one of Western Asia’s longest and most historically significant rivers, flowing through modern-day Turkey, Syria, and Iraq and forming part of the cradle of ancient Mesopotamian civilization.
• B. Tigris
  The Tigris is a major river in Western Asia that, together with the Euphrates, forms the historical Mesopotamian heartland and flows through modern-day Turkey, Syria, and Iraq.
• C. Diyala River
  The Diyala River is a significant river in eastern Iraq and western Iran that flows through the Zagros Mountains before joining the Tigris near Baghdad, supporting agriculture and settlements along its course.
• D. Salhir River
  The Salhir River is a major river in Crimea that flows through the city of Simferopol before emptying into the Syvash lagoon system.
• E. Greater Zab
  The Greater Zab is a major river in the Middle East that flows through Turkey and Iraq before joining the Tigris.
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Target entity: Tigris–Euphrates river system
Target entity description: The Tigris–Euphrates river system is a major river network in Western Asia that nurtured the ancient civilizations of Mesopotamia and remains vital to the region’s ecology, agriculture, and human settlement.

• A. Euphrates
  The Euphrates is one of Western Asia’s longest and most historically significant rivers, flowing through modern-day Turkey, Syria, and Iraq and forming part of the cradle of ancient Mesopotamian civilization.
• B. Tigris
  The Tigris is a major river in Western Asia that, together with the Euphrates, forms the historical Mesopotamian heartland and flows through modern-day Turkey, Syria, and Iraq.
• C. Diyala River
  The Diyala River is a significant river in eastern Iraq and western Iran that flows through the Zagros Mountains before joining the Tigris near Baghdad, supporting agriculture and settlements along its course.
• D. Salhir River
  The Salhir River is a major river in Crimea that flows through the city of Simferopol before emptying into the Syvash lagoon system.
• E. Greater Zab
  The Greater Zab is a major river in the Middle East that flows through Turkey and Iraq before joining the Tigris.
• F. None of above. chosen