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.

Input: Consider Input: Question: Muscle atrophy due to age is called what? Answer: sarcopenia

Output: Muscle atrophy due to age is called sarcopenia.


Input: Consider Input: Question: What form when water vapor condenses in the air around specs of matter? Answer: clouds

Output: Clouds form(s) when water vapor condenses in the air around specs of matter.


Input: Consider Input: Question: What type of substance is any matter that has a fixed chemical composition and characteristic properties? Answer: pure chemical substance


Output: Pure chemical substance type of substance is any matter that has a fixed chemical composition and characteristic properties.