About: http://webisa.webdatacommons.org/290026653

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	I think that a better approach (for all libraries) is to provide a default implementation but let the end user to change them, for example let him to inject attributes types to replace the defaults.
http://www.w3.org/ns/prov#wasQuotedFrom	dynamicprogrammer.com