About: http://webisa.webdatacommons.org/174452931

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	If you want to work this way, I would say your best bet is to serialize the shopping cart and store that in the DB with a randomly generated key.
http://www.w3.org/ns/prov#wasQuotedFrom	12robots.com