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:
To remove all the hair from a barbie doll.
answer:
Use scissors to cut the hair as short as you can. Use tweezers to remove the rest of the hair.        Put the tweezers in the head, grab whatever hair you can and yank it out.        Keep going until all of the hair has been removed.


question:
How do you remove the stinger from a bee sting from your body with your fingers?
answer:

Locate the stinger first. It should be about the size of the tip of a pen. Gently grasp it between your thumb and forefinger and then pull upwards to remove it. Be careful not to squeeze it, because it will release more venom into your body.