Generate a context and a hypothesis.
Context: How to chill a keg of beer<br>Prepare a tub for the keg. To chill a keg, you will need a large, durable container into which the keg will fit with a little room surrounding it. The best option is buying a specialized keg tub, which can be found at many liquor stores and home brewing supply stores.

Hypothesis: chill a keg by using a lit grill