/usr/share/perl5/XML/GRDDL/ is in libxml-grddl-perl 0.004-2.
This file is owned by root:root, with mode 0o755.
..
/usr/share/perl5/XML/GRDDL/External.pm
/usr/share/perl5/XML/GRDDL/Namespace.pm
/usr/share/perl5/XML/GRDDL/Profile.pm
/usr/share/perl5/XML/GRDDL/Transformation/
/usr/share/perl5/XML/GRDDL/Transformation.pm
/usr/share/perl5/XML/GRDDL/Transformation/Hardcoded/
/usr/share/perl5/XML/GRDDL/Transformation/Hardcoded.pm
/usr/share/perl5/XML/GRDDL/Transformation/Hardcoded/eRDF.pm
/usr/share/perl5/XML/GRDDL/Transformation/RDF_EASE/
/usr/share/perl5/XML/GRDDL/Transformation/RDF_EASE.pm
/usr/share/perl5/XML/GRDDL/Transformation/RDF_EASE/Functional.pm
/usr/share/perl5/XML/GRDDL/Transformation/RDF_EASE/Selector.pm
/usr/share/perl5/XML/GRDDL/Transformation/XSLT_1.pm
/usr/share/perl5/XML/GRDDL/Transformation/XSLT_2.pm