About: http://webisa.webdatacommons.org/443271674

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	alert("This demo requires a browser such as Google Chrome that supports the Page Visibility API.");
http://www.w3.org/ns/prov#wasQuotedFrom	mozilla.org