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.

Input: Consider Input: Fact: a tree growing a tree-growth ring occurs once per year. Question: Two felled trees, split in twain, with the same number of rings, means they're the same?

Output: age


Input: Consider Input: Fact: using a car causes pollution. Question: Which form of travel causes the most pollution?

Output: driving


Input: Consider Input: Fact: plants are a source of fibers. Question: Which is most helpful to a constipated Elephant?


Output: oats