PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • You would lose the ceiling of PHP: once past a certain (low) level of code complexity, PHP just runs out of steam and can not go any further, while Perl has not such limitation (no blame here, really; PHP is intended to be a presentation-only language with minimal utility outside of that, but people try to push it way beyond that.) There is a bunch of other things, mostly annoyances, that would be gone
http://www.w3.org/ns/prov#wasQuotedFrom
  • perlmonks.org