Teacher: In this task, you are given a question and a corresponding answer. Your task is to generate a fact statement that is useful in answering the given question.
Teacher: Now, understand the problem? If you are still confused, see the following example:
Question: Frilled sharks and angler fish live far beneath the surface of the ocean, which is why they are known as? Answer: deep sea fish
Solution: deep sea animals live deep in the ocean.
Reason: This sentence is useful when answering the given question. The sentence provides the information that animals who live deep in the ocean are called deep sea fish. This is a good output. 

Now, solve this instance: Question: A young boy is reprimanded by his mother for sleeping with his heavy blankets over his head. His mother is worried that if the boy continues to sleep like that, he will suffocate. This is because? Answer: CO2 in large amounts is fatal.
Student:
carbon dioxide can be found in the air