About: http://webisa.webdatacommons.org/248369973

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	It is understandable that sites such as facebook.com and twitter.com are blocked; they are distractions from learning.
http://www.w3.org/ns/prov#wasQuotedFrom	change.org