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: What happens when forces of evolution work over a long period of time? Answer: macroevolution

Output: Macroevolution happens when forces of evolution work over a long period of time.


Input: Consider Input: Question: What is the most abundant element in the universe? Answer: hydrogen

Output: Hydrogen is the most abundant element in the universe.


Input: Consider Input: Question: The pion can only be created by violating the conservation of what? Answer: mass-energy


Output: The pion can only be created by violating the conservation of mass-energy.