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

statement: When the planet was buried in snow and ice it was known as the glacial eras, question: What was the era called when the planet was buried in snow and ice?
glacial

statement: Octopuses expel a dark cloud to hide from dolphins., question: What expels a dark cloud to hide from dolphins?
Octopuses

statement: motorcycles require smooth surfaces, question: Motorcycles require what?

smooth surfaces