TASK DEFINITION: Given a statement and question, generate the answer to the question such that the answer is contained in the statement.
PROBLEM: statement: Weather refers to the conditions of a layer of gases around a planet, question: What refers to the conditions of a layer of gases around a planet?

SOLUTION: Weather

PROBLEM: statement: Cars require surfaces with less friction., question: Cars require surfaces with what?

SOLUTION: less friction

PROBLEM: statement: medicines have no effect on HIV, question: What has no effect on HIV?

SOLUTION:
medicines