About: http://webisa.webdatacommons.org/356082039

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	Spam guards are usually already installed on the server, for example if you use an email application such as 'Gmail' or 'Hotmail' they will already have a spam guard installed.
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com