About: http://webisa.webdatacommons.org/284730555

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	Abstract:In order to protect email users from receiving unsolicited commercial email or spam, anti-spam measures building on technologies, such as filters and block lists, have been deployed widely.
http://www.w3.org/ns/prov#wasQuotedFrom	illinois.edu