About: http://webisa.webdatacommons.org/214621123

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	The following is an example of how users may perform an upsert using the UpdateHandler interface when one or more SQL statements are to be automatically generated (i.e., not provided by the user):
http://www.w3.org/ns/prov#wasQuotedFrom	google.com