Given scientific fact as input, generate the question from this fact such that it can be answered from the input.

Ex Input:
Bees are naturalized on every continent except antarctica.

Ex Output:
Bees are naturalized on every continent except which?

Ex Input:
Induced or spontaneous are the two methods in which mutations arise in dna.

Ex Output:
What are the two methods in which mutations arise in dna?

Ex Input:
Centripetal force is the force that causes centripetal acceleration.

Ex Output:
What is the force that causes centripetal acceleration?