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.

[Q]: Fact: An example of a chemical change is acid breaking down substances. Question: Drinking cola daily removes layers from the surface of?
[A]: enamel on molars


[Q]: Fact: a bird is warm-blooded. Question: Which of these is warm-blooded?
[A]: a vulture


[Q]: Fact: lighting a candle causes that candle to burn. Question: Which of the following prolongs combustion?
[A]:
candle wax