About: http://webisa.webdatacommons.org/133227949

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	However, recent types of communication system such as EDGE and UMTS use non-constant envelope modulation schemes.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com.au