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

[EX Q]: statement: charting ancestry on a graph is a useful tool for studying inheritance traits., question: What is charting ancestry on a graph useful for studying?
[EX A]: inheritance traits

[EX Q]: statement: Pregnancy can happen if protection breaks., question: What happens to pregnancy?
[EX A]: protection breaks

[EX Q]: statement: ice ages are also called glacial epochs, question: What are ice ages also called?
[EX A]:
glacial epochs