TASK DEFINITION: In this task, you are given a question and a corresponding answer. Your task is to generate a fact statement that is useful in answering the given question.
PROBLEM: Question: Where would you point to as an example of condensation, if limited to an office building? Answer: the beads on a cold root beer can.

SOLUTION: beads of water are formed by water vapor condensing

PROBLEM: Question: A person cuts down their neighbor's tree without permission. The neighbor who lost the tree is upset, and sues for the cost of the tree, which depends on the age of the tree at the time of cutting. The tree age is determined by? Answer: number of circles.

SOLUTION: a tree growing a tree-growth ring occurs once per year

PROBLEM: Question: A plum tree's purple leaves uses light energy to? Answer: create nourishment.

SOLUTION:
a leaf performs photosynthesis