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.

Example Input: Fact: a barometer is used to measure air pressure. Question: O2 molecules stacked on top of each other create weight which is then tallied by a?
Example Output: barometer

Example Input: Fact: a mouse gives birth to live young. Question: This creature eats cheese and is unable to lay eggs?
Example Output: a mouse

Example Input: Fact: the pupa stage is a stage in the metamorphosis process of some animals. Question: Which has a child that will miss out on being a pupa?
Example Output:
a giraffe