In this task, you need to write a topic word from the given fact. The topic word must have at least one word overlap with the given fact. The topic word often involves adding a new word from a related concept. In your topic word, use at least one word from the given fact. Topic words with two or more words work best.

[Q]: Fact: keeping food cold is used for keeping food fresh.
[A]: food cold safety.


[Q]: Fact: Steroid hormones are made of lipids, such as phospholipids and cholesterol.
[A]: fats lipids.


[Q]: Fact: Urine leaves the body through a sphincter in the process of urination.
[A]:
liquid waste urine.


