About: http://webisa.webdatacommons.org/419274352

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	Just be pragmatic and start with a simple proposition and work forward, such as your propositions above.
http://www.w3.org/ns/prov#wasQuotedFrom	johnquiggin.com