About: http://webisa.webdatacommons.org/421078313

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	Unfortunately this does not stop anyone from doing stupid things such as passing in another Control's property and value, so the following will happily compile:
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com