Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
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Question: Chewing insects such as dragonflies and grasshoppers have two many sets of jaws.

Answer: Chewing insects such as dragonflies and grasshoppers have how many sets of jaws?


Question: Through a process called electromagnetic induction, generators change the kinetic energy of a spinning turbine to electrical energy.

Answer: Through a process called electromagnetic induction, generators change what energy form of a spinning turbine to electrical energy?


Question: The cubic crystal system is composed of three many different types of unit cells.

Answer:
The cubic crystal system is composed of how many different types of unit cells?