In this task, you are given a question and an answer, you would be asked to create the sentence based on the Question-Answer provided. It should be contained within the Question-Answer provided.

Example Input: Question: Which of the following statements best describes a complex machine? Answer: It is made of more than one simple machine.
Example Output: A complex machine is described by: it is made of more than one simple machine.

Example Input: Question: What do you call the formation of a water vapor pocket? Answer: cavitation
Example Output: You call the formation of a water vapor pocket cavitation.

Example Input: Question: Why is it important to protect soil? Answer: It has nutrients used by plants to grow.
Example Output:
It is important to protect soil because it has nutrients used by plants to grow.