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: no light shines through an opaque object. Question: light is unable to shine through what?
[EX A]: wood

[EX Q]: Fact: a switch is used to stop the flow of current in an electrical circuit. Question: A person wants a room that is artificially brightened to go back to darkness, so they?
[EX A]: adjust a switch

[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