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 type of friction is friction that acts on objects when they are sliding over a surface? Answer: sliding friction
Example Output: Sliding friction is friction that acts on objects when they are sliding over a surface.

Example Input: Question: What do muscles need to contract? Answer: stimulus
Example Output: Muscles need stimulus to contract.

Example Input: Question: Where is the pituitary gland? Answer: brain
Example Output:
The pituitary gland is in the brain.