Given a statement and question, generate the answer to the question such that the answer is contained in the statement.

statement: the oviducts are used production of offspring, question: The oviducts are used to produce what?
offspring

statement: at least two mirrors are used for observing stars by astronomers, question: How many mirrors are used for observing stars by astronomers?
at least two

statement: Weather refers to the conditions of a layer of gases around a planet, question: What refers to the conditions of a layer of gases around a planet?

Weather