About: http://webisa.webdatacommons.org/7317511

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	it is not fixed in terms of hours or days, but are a better gauge of some secondary activity.
http://www.w3.org/ns/prov#wasQuotedFrom	perfectworld.com