/usr/share/perl5/GO/Model/ is in libgo-perl 0.15-6.
This file is owned by root:root, with mode 0o755.
..
/usr/share/perl5/GO/Model/Association.pm
/usr/share/perl5/GO/Model/CrossProduct.pm
/usr/share/perl5/GO/Model/DB.pm
/usr/share/perl5/GO/Model/Evidence.pm
/usr/share/perl5/GO/Model/GeneProduct.pm
/usr/share/perl5/GO/Model/Graph.pm
/usr/share/perl5/GO/Model/GraphIterator.pm
/usr/share/perl5/GO/Model/GraphNodeInstance.pm
/usr/share/perl5/GO/Model/LogicalDefinition.pm
/usr/share/perl5/GO/Model/Modification.pm
/usr/share/perl5/GO/Model/Ontology.pm
/usr/share/perl5/GO/Model/Path.pm
/usr/share/perl5/GO/Model/Property.pm
/usr/share/perl5/GO/Model/Relationship.pm
/usr/share/perl5/GO/Model/Restriction.pm
/usr/share/perl5/GO/Model/Root.pm
/usr/share/perl5/GO/Model/Seq.pm
/usr/share/perl5/GO/Model/Species.pm
/usr/share/perl5/GO/Model/Term.pm
/usr/share/perl5/GO/Model/TreeIterator.pm
/usr/share/perl5/GO/Model/Xref.pm