/usr/share/perl5/HTML/ is in libhtml-tokeparser-simple-perl 3.16-2.
This file is owned by root:root, with mode 0o755.
..
/usr/share/perl5/HTML/TokeParser/
/usr/share/perl5/HTML/TokeParser/Simple/
/usr/share/perl5/HTML/TokeParser/Simple.pm
/usr/share/perl5/HTML/TokeParser/Simple/Token/
/usr/share/perl5/HTML/TokeParser/Simple/Token.pm
/usr/share/perl5/HTML/TokeParser/Simple/Token/Comment.pm
/usr/share/perl5/HTML/TokeParser/Simple/Token/Declaration.pm
/usr/share/perl5/HTML/TokeParser/Simple/Token/ProcessInstruction.pm
/usr/share/perl5/HTML/TokeParser/Simple/Token/Tag/
/usr/share/perl5/HTML/TokeParser/Simple/Token/Tag.pm
/usr/share/perl5/HTML/TokeParser/Simple/Token/Tag/End.pm
/usr/share/perl5/HTML/TokeParser/Simple/Token/Tag/Start.pm
/usr/share/perl5/HTML/TokeParser/Simple/Token/Text.pm