https://manpages.ubuntu.com/manpages/xenial/man3/RDF::TrineX::Functions.3pm.html
Ubuntu Manpage: RDF::TrineX::Functions - some shortcut functions for RDF::Trine's object-oriented...
some shortcut functions for RDF::Trine's object-oriented interface
https://manpages.ubuntu.com/manpages/xenial/man3/RDF::TrineX::Parser::Pretdsl.3pm.html
Ubuntu Manpage: RDF::TrineX::Parser::Pretdsl - the Perl RDF Extended Turtle Domain-Specific Language
the Perl RDF Extended Turtle Domain-Specific Language