Turn the given fact into a question by a simple rearrangement of words. This typically involves replacing some part of the given fact with a WH word. For example, replacing the subject of the provided fact with the word "what" can form a valid question. Don't be creative! You just need to rearrange the words to turn the fact into a question - easy! Don't just randomly remove a word from the given fact to form a question. Remember that your question must evaluate scientific understanding. Pick a word or a phrase in the given fact to be the correct answer, then make the rest of the question. You can also form a question without any WH words. For example, "A radio converts electricity into?"

Ex Input:
Fact: evaporation can be used for separating salt from water.

Ex Output:
What could be used to separate salt from water?


Ex Input:
Fact: Evaporation can be used for separating a solute from a water in an aqueous solution.

Ex Output:
Evaporation can be used for separating a solute from a water in what?


Ex Input:
Fact: pushing on the pedals of a Schwinn causes it to move.

Ex Output:

what moves by having the pedals pushed on?