About: http://webisa.webdatacommons.org/74313281

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	Firefox on Mac doesn???t support this when the active element is a button.
http://www.w3.org/ns/prov#wasQuotedFrom	quirksmode.org