About: http://webisa.webdatacommons.org/209690998

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	Writing queries like the one in your example is a performance killer, the result is unsargable and creates usually the worst execution plan for both cases.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com