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 Q]: Question: Secondary pollutants form from chemical reactions that occur when pollution is exposed to what? Answer: sunlight
[EX A]: Secondary pollutants form from chemical reactions that occur when pollution is exposed to sunlight.

[EX Q]: Question: Most protein antigens require signals from helper t cells (th2) to proceed to make what? Answer: antibody
[EX A]: Most protein antigens require signals from helper t cells (th2) to proceed to make antibody.

[EX Q]: Question: How many calories of energy does one gram of sugar or starch provide? Answer: 4
[EX A]:
One gram of sugar or starch provides 4 calories of energy.