instruction:
Given a statement, generate a question such that the answer is contained in that statement.
question:
An electronic device is used for getting sums.
answer:
What is used to get sums?

question:
An animal with an additional joint in its mandible became more mammal-like as it continued to evolve
answer:
What did an animal with an additional joint become?

question:
cows can be plant eaters
answer:
What type of animal can cows be?