About: http://webisa.webdatacommons.org/8477229

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	BACKGROUND OF THE INVENTION The requirements of modern day business have led to the development of many types of equipment for initially preparing or reproducing documents such as letters, invoices, and other documents.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com