About: http://webisa.webdatacommons.org/352787428

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 am glad your tests were clear although I know it is really frustrating and you just want them to tell you actually, there is something slightly wrong, here is a quick and simple fix.
http://www.w3.org/ns/prov#wasQuotedFrom	mumsnet.com