\def\attrx#1{{\em\fg{DarkRed}#1}}
\begin{tabular}{cccccc}
\begin{tabular}{|l|}\hline
\multicolumn{1}{|c|}{\elem{VOTABLE}}\\
\multicolumn{1}{|c|}{{\em(\Aref{elem:VOTABLE}{section~\ref{VOTABLE}})}}\\ \hline{}
   \attr{ID}\\
   \attr{version}\\
\hline\end{tabular}
&
\begin{tabular}{|l|}\hline
\multicolumn{1}{|c|}{\elem{RESOURCE}}\\
\multicolumn{1}{|c|}{{\em(\Aref{elem:RESOURCE}{section~\ref{RESOURCE}})}}\\ \hline{}
   \attr{ID}\\
   \attr{name}\\
   \attr{type}\\
\hline\end{tabular}
&
\begin{tabular}{|l|}\hline
\multicolumn{1}{|c|}{\elem{TABLE}}\\
\multicolumn{1}{|c|}{{\em(\Aref{elem:TABLE}{section~\ref{TABLE}})}}\\ \hline{}
   \attr{ID}\\
   \attr{name}\\
   \attr{ref}\\
\hline\end{tabular}
&
\begin{tabular}{|l|}\hline
\multicolumn{1}{|c|}{\elem{STREAM}}\\
\multicolumn{1}{|c|}{{\em(\Aref{elem:STREAM}{section~\ref{STREAM}})}}\\ \hline{}
   \attr{type}\\
   \attr{href}\\
   \attr{actuate}\\
   \attr{encoding}\\
   \attr{expires}\\
   \attr{rights}\\
\hline\end{tabular}
&
\begin{tabular}{@{}c@{}}	%%% This cell has 2 tables
\begin{tabular}{|l|}\hline
\multicolumn{1}{|c|}{\elem{FITS}}\\
\multicolumn{1}{|c|}{{\em(\Aref{elem:FITS}{section~\ref{FITS}})}}\\ \hline{}
   \attr{extnum}\\
\hline\end{tabular}
	\\ \\
\begin{tabular}{|l|}\hline
\multicolumn{1}{|c|}{\elem{TD}}\\
\multicolumn{1}{|c|}{{\em(\Aref{elem:TD}{section~\ref{TD}})}}\\ \hline{}
   \attr{ref}\\
   \attrx{encoding}\\
\hline\end{tabular}
\end{tabular}			%%% This cell has 2 tables (end)
&
\begin{tabular}{|l|}\hline
\multicolumn{1}{|c|}{\elem{COOSYS}}\\
\multicolumn{1}{|c|}{{\em(\Aref{elem:COOSYS}{section~\ref{COOSYS}})}}\\ \hline{}
   \requiredattr{ID}\\
   \attr{equinox}\\
   \attr{epoch}\\
   \attr{system}\\
\hline\end{tabular}
\\ \\
\\
%\begin{tabular}{|l|}\hline
%\multicolumn{1}{|c|}{\elem{DESCRIPTION}}\\
%\multicolumn{1}{|c|}{{\em(\Aref{elem:DESCRIPTION}{section~\ref{DESCRIPTION}})}}\\ \hline{}
%\hline\end{tabular}
%
%\begin{tabular}{|l|}\hline
%\multicolumn{1}{|c|}{\elem{DEFINITIONS}}\\
%\multicolumn{1}{|c|}{{\em(\Aref{elem:DEFINITIONS}{section~\ref{DEFINITIONS}})}}\\ \hline{}
%\hline\end{tabular}
%
\begin{tabular}{@{}c@{}}
\begin{tabular}{|l|}\hline
\multicolumn{1}{|c|}{\elem{GROUP}}\\
\multicolumn{1}{|c|}{{\em(\Aref{elem:GROUP}{section~\ref{GROUP}})}}\\ \hline{}
   \attr{ID}\\
   \attr{name}\\
   \attr{ref}\\
   \attr{ucd}\\
   \attr{utype}\\
\hline\end{tabular}\\ \\
\begin{tabular}{|l|}\hline
\multicolumn{1}{|c|}{\elem{INFO}}\\
\multicolumn{1}{|c|}{{\em(\Aref{elem:INFO}{section~\ref{INFO}})}}\\ \hline{}
   \attr{ID}\\
   \requiredattr{name}\\
   \requiredattr{value}\\
\hline\end{tabular}
\end{tabular}
&
\begin{tabular}{|l|}\hline
\multicolumn{1}{|c|}{\elem{PARAM}}\\
\multicolumn{1}{|c|}{{\em(\Aref{elem:PARAM}{section~\ref{PARAM}})}}\\ \hline{}
   \attr{ID}\\
   \attr{unit}\\
   \attr{datatype}\\
   \attr{precision}\\
   \attr{width}\\
   \attr{ref}\\
   \requiredattr{name}\\
   \attr{ucd}\\
   \attr{utype}\\
   \attr{value}\\
   \attr{arraysize}\\
\hline\end{tabular}
&
\begin{tabular}{|l|}\hline
\multicolumn{1}{|c|}{\elem{FIELD}}\\
\multicolumn{1}{|c|}{{\em(\Aref{elem:FIELD}{section~\ref{FIELD}})}}\\ \hline{}
   \attr{ID}\\
   \attr{unit}\\
   \requiredattr{datatype}\\
   \attr{precision}\\
   \attr{width}\\
   \attr{ref}\\
   \requiredattr{name}\\
   \attr{ucd}\\
   \attr{utype}\\
   \attr{arraysize}\\
   \attrx{type}\\
\hline\end{tabular}
&
\begin{tabular}{|l|}\hline
\multicolumn{1}{|c|}{\elem{VALUES}}\\
\multicolumn{1}{|c|}{{\em(\Aref{elem:VALUES}{section~\ref{VALUES}})}}\\ \hline{}
   \attr{ID}\\
   \attr{type}\\
   \attr{null}\\
   %\attr{invalid}\\
\hline\end{tabular}
&
\begin{tabular}{@{}c@{}}
\begin{tabular}{|l|}\hline
\multicolumn{1}{|c|}{\elem{MIN}}\\
\multicolumn{1}{|c|}{{\em(\Aref{elem:MIN}{section~\ref{MIN}})}}\\ \hline{}
   \requiredattr{value}\\
   \attr{inclusive}\\
\hline\end{tabular}
	\\ \\
\begin{tabular}{|l|}\hline
\multicolumn{1}{|c|}{\elem{MAX}}\\
\multicolumn{1}{|c|}{{\em(\Aref{elem:MAX}{section~\ref{MAX}})}}\\ \hline{}
   \requiredattr{value}\\
   \attr{inclusive}\\
\hline\end{tabular}
	\\ \\
\begin{tabular}{|l|}\hline
\multicolumn{1}{|c|}{\elem{OPTION}}\\
\multicolumn{1}{|c|}{{\em(\Aref{elem:OPTION}{section~\ref{OPTION}})}}\\ \hline{}
   \attr{name}\\
   \requiredattr{value}\\
\hline\end{tabular}
\end{tabular}
&
\begin{tabular}{|l|}\hline
\multicolumn{1}{|c|}{\elem{LINK}}\\
\multicolumn{1}{|c|}{{\em(\Aref{elem:LINK}{section~\ref{LINK}})}}\\ \hline{}
   \attr{ID}\\
   \attr{content-role}\\
   \attr{content-type}\\
   \attr{title}\\
   \attr{value}\\
   \attr{href}\\
   \attr{gref}\\
   \attrx{action}\\
\hline\end{tabular}
\\
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%\begin{tabular}{|l|}\hline
%\multicolumn{1}{|c|}{\elem{DATA}}\\
%\multicolumn{1}{|c|}{{\em(\Aref{elem:DATA}{section~\ref{DATA}})}}\\ \hline{}
%\hline\end{tabular}
%
%\begin{tabular}{|l|}\hline
%\multicolumn{1}{|c|}{\elem{TABLEDATA}}\\
%\multicolumn{1}{|c|}{{\em(\Aref{elem:TABLEDATA}{section~\ref{TABLEDATA}})}}\\ \hline{}
%\hline\end{tabular}
%

%\begin{tabular}{|l|}\hline
%\multicolumn{1}{|c|}{\elem{BINARY}}\\
%\multicolumn{1}{|c|}{{\em(\Aref{elem:BINARY}{section~\ref{BINARY}})}}\\ \hline{}
%\hline\end{tabular}
%

\end{tabular}
