About: http://webisa.webdatacommons.org/72099169

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	The main advantage of the first approach is that it can be rather easily realized and implemented using existing systems such as Web browsers and mail clients.
http://www.w3.org/ns/prov#wasQuotedFrom	psu.edu