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: sand dunes are made of sand. Question: The mounds at the beach are made of?
[EX A]: silica

[EX Q]: Fact: fat is used to keep animals warm. Question: A bear's blubber?
[EX A]: enables him to keep his body cozy

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