About: http://webisa.webdatacommons.org/81111357

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	You read in the credit card type from the user, but then you never do anything with what you read in (the ct variable), but instead set up a card variable and assume the card is a Visa.
http://www.w3.org/ns/prov#wasQuotedFrom	daniweb.com