\begin{psyntax}{Structured Types}{typestructured}
\synt{structured\ type} 
\begin{stack}
\synt{array\ type} \\
\synt{record\ type} \\
\synt{object\ type} \\
\synt{class\ type} \\
\synt{class\ reference\ type}\\
\synt{interface\ type}\\
\synt{set\ type}\\
\synt{file\ type}
\end{stack}
\end{psyntax}