About: http://webisa.webdatacommons.org/441070494

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	Expression Trees look promising, but I am not sure how to use them and if they are a good idea where performance is an issue.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com