Binary package “debiandoc-sgml” in ubuntu bionic

DebianDoc SGML DTD and formatting tools

 This is an SGML-based documentation formatting package used for the
 Debian manuals. It reads markup files and produces HTML, LaTeX, DVI
 (via LaTeX), PostScript (via LaTeX/DVI), PDF (via LaTeX), Texinfo,
 Info (via Texinfo), DebianDoc SGML, DocBook XML, plain text (with
 overstrikes a la troff as well as without) files.
 .
 The LaTeX based output needs the texlive, texlive-latex-extra and
 texlive-lang-all packages. In addition to this, Chinese and Japanese need
 latex-cjk-all and corresponding font packages.
 .
 The Texinfo based output needs the texinfo package.