TASK DEFINITION: Given a statement, generate a question such that the answer is contained in that statement.
PROBLEM: getting food by killing requires seeing animals

SOLUTION: What is required to get food by killing?

PROBLEM: A radio is used for exchange of knowledge.

SOLUTION: What is a radio used for?

PROBLEM: crumbs can be separated with a sifter

SOLUTION:
What can be separated with a sifter?