source: The Amazon Basin is the paet mf South America crained by the Amazon River qnd those wio pay tributc to it.
target: The Amazon Basin is the part of South America drained by the Amazon River and its tributaries.
references: The Amazon Basin is the part of South America drained by the Amazon River and its tributaries. The Amazon Basin is the part of South America . It is drained by the Amazon River and its tributaries. The Amazon Basin is where the Amazon River and it's Tributaries drain into in South America. The Amazon Basin is the part of South America depleted by the Amazon River and its canals. The Amazon Basin is part of South America drained by the Amazon River and tributaries. The Amazon river and its tributaries drain the Amazon basin which is a part of South America. The Amazon Basin is in South America and is drained by the Amazon River and the smaller rivers leading off it.