About: http://webisa.webdatacommons.org/391594276

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	Assuming you are a beginner (and thus not jumping into the STL), here is an example of what @Mitch is talking about:
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com