About: http://webisa.webdatacommons.org/153311451

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	r1, r2, r3 & r4 are the Jones Matrix elements which describe the Compensator, (Note that a Jones Matrix is utilized, however, a Mueller Matrix or other Matrix could also be utilized);
http://www.w3.org/ns/prov#wasQuotedFrom	google.com