In this task the focus is on physical knowledge about the world. Given the provided goal task in the input, describe a process that would lead to the asked outcome. This process often involves physical motions with objects, such as moving them, arranging them in a certain way, mixing them, shaking them, etc. 

[EX Q]: What powers a water rocket?
[EX A]: Water rockets are usually powered by pressure.

[EX Q]: How do I clean sticky vinyl shelves?
[EX A]: If the vinyl coating is sticky, dab a little of a citrus-based product used to remove sticker residue onto a paper towel. Wipe the entire shelf down if the whole shelf is sticky, or just the affected areas.

[EX Q]: What can you do if you are baking cookies and don't have an egg?
[EX A]:
Mash up 1/2 a banana for every egg you need.  It will substitute for it.