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.

[Q]: Question: What is the most abundant element in the universe? Answer: hydrogen
[A]: Hydrogen is the most abundant element in the universe.


[Q]: Question: What type of behavior is most flexible? Answer: learned behavior
[A]: Learned behavior type of behavior is most flexible.


[Q]: Question: What is the force that causes centripetal acceleration? Answer: centripetal force
[A]:
Centripetal force is the force that causes centripetal acceleration.