About: http://webisa.webdatacommons.org/308794954

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 one implementation, the smtp and pop3 types also do not send or receive mail; they issue a single command over the channel to elicit a response.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com