About: http://webisa.webdatacommons.org/221639539

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	Note that it returns the empty string (), not false, when nothing is selected. getBrowserSelection() is not implemented on some platforms, such as Thunderbird and Songbird.
http://www.w3.org/ns/prov#wasQuotedFrom	mozilla.org