About: http://webisa.webdatacommons.org/266145688

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	An example of a system message is a greeting message transmitted to a receiver which is roaming into a coverage area outside of its home coverage area.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk