PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The reason is there is a theory of relational databases and strict rules for manipulating relational data (something like relational algebra or codd algebra; these are what SQL is from), and theory does not allow things such as just search all fields".
http://www.w3.org/ns/prov#wasQuotedFrom
  • stackoverflow.com