About: http://webisa.webdatacommons.org/453872235

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	In such ER systems, products are registered at the point of sale using a unique identifier, such as a serial number, that uniquely identifies the product involved in a sales transaction.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com