TASK DEFINITION: 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.
PROBLEM: Fact: riding a bike does not cause pollution. Question: To be environmentally friendly?

SOLUTION: use your feet to pedal somewhere

PROBLEM: Fact: In the photosynthesis process oxygen has the role of waste product. Question: Unlike CO2, oxygen is a waste product of?

SOLUTION: cactus

PROBLEM: Fact: the moon does not contain water. Question: the moon is lacking what?

SOLUTION:
h2o