About: http://webisa.webdatacommons.org/343629505

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	for example, the familiar Ax = b where A and b are a constant matrix and vector respectively
http://www.w3.org/ns/prov#wasQuotedFrom	siggraph.org