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.

[EX Q]: Question: What causes orbits? Answer: planetary pull.
[EX A]: gravity causes orbits

[EX Q]: Question: Depressions in building materials that fill with frozen water will? Answer: expand.
[EX A]: when water freezes , that water expands

[EX Q]: Question: Organisms exist only because of the energy from? Answer: our yellow dwarf.
[EX A]:
the sun is the source of energy for life on Earth