About: http://webisa.webdatacommons.org/130902791

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	Preferably, database 520 is implemented as a relational database, although other types of databases could be employed.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com