Given a statement and question, generate the answer to the question such that the answer is contained in the statement.
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Question: statement: the outermost layer of modified leaves is usually green, question: What color is the outermost layer of modified leaves?

Answer: green


Question: statement: Tadpoles become frogs after four months., question: After how long do tadpoles become frogs?

Answer: four months


Question: statement: Locusts can spread disease and destroy harvests., question: What can spread disease and destroy harvests?

Answer:
Locusts