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

[Q]: statement: a map of the types of blood proteins in the family tree is useful for studying inheritance patterns, question: What is a map of blood proteins useful for studying?
[A]: inheritance patterns


[Q]: statement: optical instruments help explain the natural world, question: What helps explain the natural world?
[A]: optical instruments


[Q]: statement: A soil sifter can be employed to separate out glass shards., question: What can be used to separate glass shards?
[A]:
soil sifter