TASK DEFINITION: Given a statement and question, generate the answer to the question such that the answer is contained in the statement.
PROBLEM: statement: simple green plants play significant roles as producers in water ecosystems, question: What ecosystems do green plants play a significant role in?

SOLUTION: water ecosystems

PROBLEM: 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?

SOLUTION: inheritance patterns

PROBLEM: statement: kidney infection can be treated with drugs, question: What can be used to treat kidney infection?

SOLUTION:
drugs