About: http://webisa.webdatacommons.org/260221822

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	BTW, is it always true to say that E(trace[Az])=trace[A*E(z)] ? (or just if Az is a number?)
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com