Part 1. 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.
Part 2. Example
Fact: deep sea animals live deep in the ocean
Answer: Frilled sharks and angler fish live far beneath the surface of the ocean, which is why they are known as?
Explanation: The output question is related to the fact in that frilled sharks and angler fish are deap sea animals. The question is related to the fact so this is a good question.
Part 3. Exercise
Fact: the circulatory system carries oxygen from the digestive and respiratory systems to the rest of the body
Answer:
the circulatory system carries oxygen from the digestive and respiratory systems to the rest of the what?