About: http://webisa.webdatacommons.org/255469476

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	Yes, it does not work on all readers (engines), but it does make a difference on quite a few, especially if you start using background images on headers, etc. and use the second example.
http://www.w3.org/ns/prov#wasQuotedFrom	mobileread.com