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: Similarity in biochemicals, like the glucose used by virtually all living things for energy, provides evidence of what? Answer: evolution
Example Output: Similarity in biochemicals, like the glucose used by virtually all living things for energy, provides evidence of evolution.

Example Input: Question: Exposure to what can increase the amount of pigment in the skin and make it appear darker? Answer: ultraviolet radiation
Example Output: Exposure to ultraviolet radiation can increase the amount of pigment in the skin and make it appear darker.

Example Input: Question: What are reversible physical changes in matter called? Answer: changes of state
Example Output:
Changes of state are reversible physical changes in matter called.