/usr/share/ is in sgmls-doc 1.03ii-34.
This file is owned by root:root, with mode 0o755.
..
/usr/share/doc-base/
/usr/share/doc-base/sgmlspl
/usr/share/doc-base/sgmlspm
/usr/share/doc/
/usr/share/doc/sgmls-doc/
/usr/share/doc/sgmls-doc/SGMLSpm/
/usr/share/doc/sgmls-doc/SGMLSpm/terms.html
/usr/share/doc/sgmls-doc/SGMLSpm/example.html
/usr/share/doc/sgmls-doc/SGMLSpm/sgmlsnotation.html
/usr/share/doc/sgmls-doc/SGMLSpm/index.html
/usr/share/doc/sgmls-doc/SGMLSpm/extend.html
/usr/share/doc/sgmls-doc/SGMLSpm/sgmlsevent.html
/usr/share/doc/sgmls-doc/SGMLSpm/sgmlspm.html
/usr/share/doc/sgmls-doc/SGMLSpm/sgmls.html
/usr/share/doc/sgmls-doc/SGMLSpm/bugs.html
/usr/share/doc/sgmls-doc/SGMLSpm/xtrainfo.html
/usr/share/doc/sgmls-doc/SGMLSpm/sgml.html
/usr/share/doc/sgmls-doc/SGMLSpm/sgmlsattribute.html
/usr/share/doc/sgmls-doc/SGMLSpm/definition.html
/usr/share/doc/sgmls-doc/SGMLSpm/events.html
/usr/share/doc/sgmls-doc/SGMLSpm/sgmlsentity.html
/usr/share/doc/sgmls-doc/SGMLSpm/sgmlselement.html
/usr/share/doc/sgmls-doc/SGMLSpm/perl5.html
/usr/share/doc/sgmls-doc/SGMLSpm/sgmlspm.refs.gz
/usr/share/doc/sgmls-doc/copyright
/usr/share/doc/sgmls-doc/sgmlspl/
/usr/share/doc/sgmls-doc/sgmlspl/terms.html
/usr/share/doc/sgmls-doc/sgmlspl/sgmlspl.html
/usr/share/doc/sgmls-doc/sgmlspl/output.html
/usr/share/doc/sgmls-doc/sgmlspl/specs.html
/usr/share/doc/sgmls-doc/sgmlspl/installation.html
/usr/share/doc/sgmls-doc/sgmlspl/forward.html
/usr/share/doc/sgmls-doc/sgmlspl/sgmlspl.refs
/usr/share/doc/sgmls-doc/sgmlspl/pushoutput.html
/usr/share/doc/sgmls-doc/sgmlspl/skel.html
/usr/share/doc/sgmls-doc/sgmlspl/dsssl.html
/usr/share/doc/sgmls-doc/sgmlspl/bugs.html
/usr/share/doc/sgmls-doc/sgmlspl/outputex.html
/usr/share/doc/sgmls-doc/sgmlspl/definition.html
/usr/share/doc/sgmls-doc/sgmlspl/generic.html
/usr/share/doc/sgmls-doc/sgmlspl/specific.html
/usr/share/doc/sgmls-doc/sgmlspl/popoutput.html
/usr/share/doc/sgmls-doc/sgmlspl/handlers.html
/usr/share/doc/sgmls-doc/changelog.Debian.gz
/usr/share/doc/sgmls-doc/sgmlspl/index.html