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: When blood vessels in the head dilate, what kind of severe headache can occur? Answer: migraine

Ex Output:
When blood vessels in the head dilate, a migraine, a severe headache, can occur.


Ex Input:
Question: What is at the top of the mesosphere? Answer: mesopause

Ex Output:
The mesopause is at the top of the mesosphere.


Ex Input:
Question: Unburned hydrocarbons can more easily be converted to carbon dioxide and water in the presence of a what? Answer: catalyst

Ex Output:

Unburned hydrocarbons can more easily be converted to carbon dioxide and water in the presence of a catalyst.