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:
How can I figure out if something is economical?
answer:
Look up its effect on your wallet, as well as the nessary materials to build it.


question:
How do you draw a coffin?
answer:
Using a piece of paper and a pencil, lightly trace the outline of a model coffin.


question:
Retract an ummbrella.
answer:

Firmly press the button on the handle of the umbrella while pulling down on the shaft until it collapses. Wrap the fastener around the umbrella and secure.