TASK DEFINITION: Given a statement and question, generate the answer to the question such that the answer is contained in the statement.
PROBLEM: statement: Algae play significant roles as producers in water areas., question: Algae play a significant role as producers in what area?

SOLUTION: water areas

PROBLEM: statement: The volume of an item can be used to measure the mass of the object., question: The volume of an item can be used to measure what?

SOLUTION: mass

PROBLEM: statement: weather can change a planet's conditions, question: What can change a planet's conditions?

SOLUTION:
weather