Given a scientific question and its correct answer, generate supporting facts for the answer. This supporting fact can be an explanation for the answer to the given question.

Input: Consider Input: Question: What preventive measure can protect even young children against diseases such as viral meningitis? Answer: vaccination

Output: Children as young as 2 years of age can be vaccinated against viral meningitis.

Input: Consider Input: Question: The frequency of a wave is the reciprocal of what other attribute of the wave? Answer: period

Output: The period of a wave and its frequency are reciprocals of each other.

Input: Consider Input: Question: Where is the food supply and embryo stored in a seed? Answer: hull
Output: reproductive structure produced by a seed plant that contains an embryo and food supply enclosed within a hull.