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

[EX Q]: statement: Triceps shrinking causes a person 's hinged joint to straighten., question: What shrinking causes a person's hinged joint to straighten?
[EX A]: Triceps

[EX Q]: statement: Sperm pass out of the body through where urine is expelled, question: What is expelled from the body?
[EX A]: urine

[EX Q]: statement: platypus usually have nests, question: What do platypus usually have?
[EX A]:
nests