About: http://webisa.webdatacommons.org/186798815

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	Some (ZMud comes to mind) have pretty powerful scripting languages built in.That said, Expect probably is your best bet if you are determined to go with Perl.
http://www.w3.org/ns/prov#wasQuotedFrom	perlmonks.org