About: http://webisa.webdatacommons.org/97155750

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	So what you are seeking for the plugin is a feature request, but it might be best to use AddToAny's generic code instead of the WordPress plugin.
http://www.w3.org/ns/prov#wasQuotedFrom	wordpress.org