About: http://webisa.webdatacommons.org/156618698

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	Beside from that I doubt the 50% performance drop, while there might be a drop, most of the work is done on the GPU, so a bit translation from one API into the other should be that bad.
http://www.w3.org/ns/prov#wasQuotedFrom	slashdot.org