About: http://webisa.webdatacommons.org/120352295

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 suspect no very good reason, the MSDN page msdn.microsoft.com/en-us/library/y37zb304 indicates that it varies by compiler version whether it is a warning or an error.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com