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: What can be used to determine the mass of a quantity of material? Answer: molar masses
Example Output: Molar masses can be used to determine the mass of a quantity of material.

Example Input: Question: What parts of the planet does solar energy have difficulty reaching? Answer: poles
Example Output: Poles parts of the planet does solar energy have difficulty reaching.

Example Input: Question: The prostate gland secretes a fluid that mixes with sperm to help form what? Answer: semen
Example Output:
The prostate gland secretes a fluid that mixes with sperm to help form semen.