About: http://webisa.webdatacommons.org/20043197

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 operation which could occur is that an author, such as principal 1, determines to delete the document to which principals 2 and 3 have attached properties.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com.au