About: http://webisa.webdatacommons.org/53908416

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	Good point, and what is more, my script was a bit buggy if a file starts with numbers followed with more than one space. (Would be renamed to a filename that starts with spaces, which is really a pain...) Fixed up with your suggestion.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com