TASK DEFINITION: Given a fact, create a question that can be answered using the fact. Construct the question such that it is unambiguous, has a unique answer and the answer can be given using the fact.
PROBLEM: Fact: studying a soil sample means studying the microorganisms in that soil

SOLUTION: studying a soil sample means studying the microorganisms in the?

PROBLEM: Fact: ethanol sometimes is made of corn

SOLUTION: Ethanol sometimes might be?

PROBLEM: Fact: a squid produces thrust by pushing water out of its body

SOLUTION:
When a squid moves forward, water is?