About: http://webisa.webdatacommons.org/298533844

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	Hereafter, the operation of the product purchase system 100 will be described according to three phases, i.e. a preparation phase, a product selection phase, and a product purchase phase. <Preparation Phase>
http://www.w3.org/ns/prov#wasQuotedFrom	google.com