About: http://webisa.webdatacommons.org/90171134

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	In MPEG-2 Systems (ISO/IEC13818-1), which is a standard conditional access system, the distributor transmits contents including images and audio after scrambling them with a scrambling key Ks.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com