Given a statement, generate a question such that the answer is contained in that statement.

Input: Consider Input: some therapsids became more mammal-like as they continued to evolve

Output: How did some therapsids become?

Input: Consider Input: ice ages buried Earth in permafrost for millions of years at a time

Output: How many years have ice ages buried Earth in permafrost?

Input: Consider Input: locusts spread illnesses and destroy crops
Output: Who spread illnesses and destroy crops?