PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Perl is an interpreted language and the use of my $y; is to establish the context of the variable not define it in the classical sense of the term.
http://www.w3.org/ns/prov#wasQuotedFrom
  • perlmonks.org