TASK DEFINITION: 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.
PROBLEM: Question: Which of the following structures is not present in animal cells? Answer: cell wall

SOLUTION: A cell wall is not present in animal cells.

PROBLEM: Question: What kind of interference characteristics does matter have compared to any wave? Answer: same

SOLUTION: Same kind of interference characteristics does matter have compared to any wave.

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

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