sentences: event a point on zero 's mouth is a mean of magic & a way can slip a point on its mouth ->  a dolphin balancing a ball on its nose is a kind of trick  a dolphin balancing a ball on its nose is a kind of trick & a magic is a learned trouble ->  a dolphin balancing a ball on its nose is a learned behavior  a dolphin balancing a ball on its nose is a learned behavior & learned needle are learned over the garbage of the plant -> a dolphin learns to balance a ball on its nose