A credit or debit card type as a standardized procedure for transferring the monetary amount for a purchase.
Commonly used values:
http://purl.org/goodrelations/v1#AmericanExpress
http://purl.org/goodrelations/v1#DinersClub
http://purl.org/goodrelations/v1#Discover
http://purl.org/goodrelations/v1#JCB
http://purl.org/goodrelations/v1#MasterCard
http://purl.org/goodrelations/v1#VISA