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\begin{diagram}{Blocks}{blocks}
\begin{mysyntdiag}
\synt{block} \synt{declaration\ part} \synt{statement\ part}
\end{mysyntdiag}
\begin{mysyntdiag}
\synt{declaration\ part}
\begin{rep}[b]
\begin{stack}\\
\synt{label\ declaration\ part}\\
\synt{constant\ declaration\ part}\\
\synt{resourcestring\ declaration\ part}\\
\synt{type\ declaration\ part}\\
\synt{variable\ declaration\ part}\\
\synt{thread variable\ declaration\ part}\\
\synt{procedure/function\ declaration\ part}
\end{stack}
\end{rep}
\end{mysyntdiag}
\begin{mysyntdiag}
\synt{label\ declaration\ part}
\lit*{label}
\begin{rep}[b]
\synt{label}\\
\lit* ,
\end{rep}
\lit* ;
\end{mysyntdiag}
\begin{mysyntdiag}
\synt{constant\ declaration\ part}
\lit*{const}
\begin{rep}[b]
\begin{stack}
\synt{constant\ declaration}\\
\synt{typed\ constant\ declaration}
\end{stack}
\end{rep}
\end{mysyntdiag}
\begin{mysyntdiag}
\synt{resourcestring\ declaration\ part}
\lit*{resourcestring}
\begin{rep}[b]
\synt{string\ constant\ declaration}\\
\end{rep}
\end{mysyntdiag}
\begin{mysyntdiag}
\synt{type\ declaration\ part}
\lit*{type}
\begin{rep}[b]
\synt{type\ declaration}\\
\end{rep}
\end{mysyntdiag}
\begin{mysyntdiag}
\synt{variable\ declaration\ part}
\lit*{var}
\begin{rep}[b]
\synt{variable\ declaration}\\
\end{rep}
\end{mysyntdiag}
\begin{mysyntdiag}
\synt{thread variable\ declaration\ part}
\lit*{threadvar}
\begin{rep}[b]
\synt{variable\ declaration}\\
\end{rep}
\end{mysyntdiag}
\begin{mysyntdiag}
\synt{procedure/function\ declaration\ part}
\begin{rep}[b]
\begin{stack}
\synt{procedure\ declaration}\\
\synt{function\ declaration}\\
\synt{constructor\ declaration}\\
\synt{destructor\ declaration}\\
\end{stack}
\end{rep}
\end{mysyntdiag}
\begin{mysyntdiag}
\synt{statement\ part}
\synt{compound\ statement}
\end{mysyntdiag}
\end{diagram}
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