Guaíba River

Target entity: Guaíba River
Context triple: [Rio Grande do Sul, contains, Guaíba River]

• A. Riachuelo River
  The Riachuelo River is a heavily polluted waterway in Buenos Aires, Argentina, historically significant as an industrial hub and now a major focus of environmental cleanup efforts.
• B. Uruguay River
  The Uruguay River is a major South American waterway that forms part of the border between Argentina, Brazil, and Uruguay before joining the Paraná River to create the Río de la Plata estuary.
• C. Obra River
  The Obra River is a significant river in western Poland known for its scenic, meandering course through lakes and wetlands before joining the Warta River.
• D. Río Rocha
  Río Rocha is a river in central Bolivia that flows through the city of Cochabamba and plays a key role in the region’s drainage and environmental conditions.
• E. Canoas River
  The Canoas River is a significant waterway in southern Brazil that joins with the Pelotas River to form the Uruguay River, an important river of the Southern Cone.
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Target entity: Guaíba River
Target entity description: The Guaíba River is a broad waterway in southern Brazil that flows past the city of Porto Alegre and serves as an important ecological, economic, and recreational feature of the region.

• A. Riachuelo River
  The Riachuelo River is a heavily polluted waterway in Buenos Aires, Argentina, historically significant as an industrial hub and now a major focus of environmental cleanup efforts.
• B. Uruguay River
  The Uruguay River is a major South American waterway that forms part of the border between Argentina, Brazil, and Uruguay before joining the Paraná River to create the Río de la Plata estuary.
• C. Obra River
  The Obra River is a significant river in western Poland known for its scenic, meandering course through lakes and wetlands before joining the Warta River.
• D. Río Rocha
  Río Rocha is a river in central Bolivia that flows through the city of Cochabamba and plays a key role in the region’s drainage and environmental conditions.
• E. Canoas River
  The Canoas River is a significant waterway in southern Brazil that joins with the Pelotas River to form the Uruguay River, an important river of the Southern Cone.
• F. None of above. chosen