About: http://webisa.webdatacommons.org/220218883

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	Obviously, you are not allowed to add a Get accessor to a WriteOnly property, but one is required for a ReadOnly property, such as Text:
http://www.w3.org/ns/prov#wasQuotedFrom	codeguru.com