\begin{tabular}{|c|c|c|c|}
\hline CHEMICAL & \begin{tabular}{l}
FALLING \\
MATERIAL
\end{tabular} & \begin{tabular}{c}
FIRST \\
NO LOITERING \\
IN THIS AREA
\end{tabular} & \begin{tabular}{l}
SLIPPERY \\
FLOOR
\end{tabular} \\
\hline & & & \\
\hline THINK & NOTICE & DoESIGNATED & DANGER \\
\hline \begin{tabular}{l}
BUCKLE UP \\
FOR SAFETY
\end{tabular} & & & (i) \\
\hline & & & \\
\hline
\end{tabular}
