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

statement: A bicycle requires a even surface., question: What does a bicycle require?
a even surface

statement: a drug that can be addictive is an example of a psychoactive drug, question: What type of drug can be addictive?
psychoactive

statement: Stopping the car quickly can cause skidding., question: Stopping the car can cause what?

skidding