About: http://webisa.webdatacommons.org/148010292

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 argue in favour of them in some locations, I found them particularly useful in this example:
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com