instruction:
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. 
question:
To prevent water from growing bacteria, you can
answer:
Use a small amount of vinegar or bleach


question:
How can I cut the handles of metal cutlery?
answer:
Use a hand saw to cut the handles.


question:
One seeks to have an alternative Christmas.
answer:

One may opt for not using a regular Christmas tree.