About: http://webisa.webdatacommons.org/355212320

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 a system such as shown in FIG. 3, there may be millions of e-mail systems such as 10 that may from time to time wish to exchange messages with any other e-mail systems.
http://www.w3.org/ns/prov#wasQuotedFrom	google.de