The table below shows the abbreviations of drainage fittings. Complete the names of the drainage fittings in the second column.
\begin{array}{|l|l|}
\hline {\text { ABBREVIATION }} & {\text { DRAINAGE FITTINGS }} \\
\hline \text { G } & \\
\hline \text { SWP } & \\
\hline \text { WSP } & \\
\hline \text { VP } & \\
\hline \text { DP } & \\
\hline
\end{array}