About: http://webisa.webdatacommons.org/85482678

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	When you buy a library, most of the functions are not virtual, for example, they do the stuff that you spent good money to have done for you, it doesnt make sense to buy a bunch of empty functions that you write yourself... =)
http://www.w3.org/ns/prov#wasQuotedFrom	devx.com