Tietê-Pinheiros Canal system

Target entity: Tietê-Pinheiros Canal system
Context triple: [Tietê River, hasTributary, Tietê-Pinheiros Canal system]

• A. Canal do Cunha
  Canal do Cunha is an urban waterway in Rio de Janeiro that drains parts of the city into Guanabara Bay and is known for severe pollution and environmental degradation.
• B. Paraguay–Paraná waterway system
  The Paraguay–Paraná waterway system is a major South American inland navigation corridor that links landlocked regions of countries like Paraguay and Bolivia to the Atlantic Ocean via the Paraguay and Paraná rivers.
• C. Rio São Francisco
  Rio São Francisco is one of Brazil’s longest and most important rivers, flowing through the country’s northeast and serving as a vital waterway for transport, agriculture, and regional ecosystems.
• D. Santo Antônio Dam
  Santo Antônio Dam is a large hydroelectric power plant in Brazil, built on the Madeira River near Porto Velho to generate electricity as part of the Madeira River energy complex.
• E. Carioca Aqueduct
  The Carioca Aqueduct, popularly known as the Lapa Arches, is a historic 18th-century aqueduct and iconic Roman-style arcade in Rio de Janeiro that now serves as a landmark bridge for the city’s tram system.
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Target entity: Tietê-Pinheiros Canal system
Target entity description: The Tietê-Pinheiros Canal system is an extensive network of engineered waterways in the São Paulo metropolitan area that channels and regulates the flow of the Tietê and Pinheiros rivers for flood control, urban drainage, and water management.

• A. Canal do Cunha
  Canal do Cunha is an urban waterway in Rio de Janeiro that drains parts of the city into Guanabara Bay and is known for severe pollution and environmental degradation.
• B. Paraguay–Paraná waterway system
  The Paraguay–Paraná waterway system is a major South American inland navigation corridor that links landlocked regions of countries like Paraguay and Bolivia to the Atlantic Ocean via the Paraguay and Paraná rivers.
• C. Rio São Francisco
  Rio São Francisco is one of Brazil’s longest and most important rivers, flowing through the country’s northeast and serving as a vital waterway for transport, agriculture, and regional ecosystems.
• D. Santo Antônio Dam
  Santo Antônio Dam is a large hydroelectric power plant in Brazil, built on the Madeira River near Porto Velho to generate electricity as part of the Madeira River energy complex.
• E. Carioca Aqueduct
  The Carioca Aqueduct, popularly known as the Lapa Arches, is a historic 18th-century aqueduct and iconic Roman-style arcade in Rio de Janeiro that now serves as a landmark bridge for the city’s tram system.
• F. None of above. chosen