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.

[EX Q]: Fact: a planet rotating causes cycles of day and night on that planet. Question: At any given time on earth, some countries can be in bed and other are in the middle of the day enjoying the outdoors, why?
[EX A]: planet rotation

[EX Q]: Fact: a bat births live young. Question: Baby bats start doing what after at least a month after birth?
[EX A]: scavenging

[EX Q]: Fact: bacteria can help digest food in humans. Question: It is vital to your health to have a?
[EX A]:
colony of bacteria