In this task, you are given a fact statement and question based on the fact. Your task is to generate the correct answer for the question. The answer needs to be generated using the context fact statement.

Input: Consider Input: Fact: each of the moon 's phases usually occurs once per month. Question: A boy is waiting to see a full moon. He notes that the full moon is tonight, and looks at it. If he wants to see another, he must wait?

Output: a month


Input: Consider Input: Fact: sugars are transported from the leaves to the roots of a plant. Question: During photosynthesis, plants produce sugar that may help with their what?

Output: sustenance


Input: Consider Input: Fact: tapping two objects together causes the particles in those objects to vibrate. Question: A tone is made when a hammer makes contact with?


Output: an solid object