About: http://webisa.webdatacommons.org/218423503

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	Though these systems often contain many built-in types of objects, it is extremely difficult to create new object types.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com