About: http://webisa.webdatacommons.org/259922237

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 would use the ones with the curly braces though, since the syntax is more like other PHP constructs, C, C++, Java, etc..
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com