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:
a ribbon
answer:
can hold books together


question:
To clean old CDs that are scratched and dirty so that they continue to work,
answer:
rub the CDs with toothpaste, a clean rag and cold water afterwards.


question:
To improve your mood when you suffer from PMS,
answer:

eat a bit of chocolate.