instruction:
Given a statement and question, generate the answer to the question such that the answer is contained in the statement.
question:
statement: Vehicle brakes rely on the tire traction to reduce speed, question: What do brakes use to reduce speed?
answer:
tire traction


question:
statement: there is a name of the larval stage in frogs, question: What is the name of the stage in frogs?
answer:
larval stage


question:
statement: Condoms make copulation safe if they're not used incorrectly., question: What makes copulation safe if they're not used incorrectly?
answer:

Condoms