Create a Supplementary Specification for the following idea: Fingerprint based Grocery Store: Develop a system where consumers can pay for their groceries without needing to bring their debit/credit card or cash. Consumers will first need to go to the grocery store to register their fingerprints and link their bank account to it. They must provide 3 fingerprints in case one of them gets cut. Consumers will also be provided with the option to create a pin number for extra security. After everything is verified, consumers will be able to make purchases without needing their wallets. This also would eliminate the need for cashiers because everything would be down by technology helping the store. The fingerprint would also let them access their account for any coupons they may have to use on their purchases.