Where would you find a green bill?
Options:
- bank
- wallet
- restaurant
- congress
- mail box
Let's think now! Step-by-step reasoning:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Money is a bill green in color. Wallet is a bag used to store money.
So, the final answer is wallet.