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.

Ex Input:
Question: What is the unit of evolution? Answer: population

Ex Output:
Population is the unit of evolution.


Ex Input:
Question: What proteins span the entire plasma membrane? Answer: transmembrane

Ex Output:
Transmembrane proteins span the entire plasma membrane.


Ex Input:
Question: Unlike ammonia, oxygen cannot be liquefied at room temperature because its what is below room temperature? Answer: critical temperature

Ex Output:

Unlike ammonia, oxygen cannot be liquefied at room temperature because its critical temperature is below room temperature.