About: http://webisa.webdatacommons.org/447987380

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	Another problem is that copies of the data often become out-of-synchronization, and thus obsolete, as information such as telephone numbers and addresses change.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com