About: http://webisa.webdatacommons.org/264276340

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 is a major problem, that the designers of the SMTP RFC didn't have to deal with.
http://www.w3.org/ns/prov#wasQuotedFrom	serverfault.com