TASK DEFINITION: Given a statement and question, generate the answer to the question such that the answer is contained in the statement.
PROBLEM: statement: Robins are good at protecting their offspring, question: Who is good at protecting their offspring?

SOLUTION: Robins

PROBLEM: statement: Eggs are often laid by birds in lifeless trees., question: Eggs are often laid by birds in what?

SOLUTION: lifeless trees

PROBLEM: statement: Turtle beaks can crack through hard calcium carbonate, question: What do turtle beaks crack through?

SOLUTION:
calcium carbonate