\begin{Verbatim}[commandchars=\\\{\}] \PYG{l+s+sAtom}{?\PYGZhy{}} \PYG{n+nf}{findall}\PYG{p}{(}\PYG{n+nv}{Student}\PYG{p}{,} \PYG{n+nf}{teaches}\PYG{p}{(}\PYG{l+s+sAtom}{bob}\PYG{p}{,} \PYG{n+nv}{Student}\PYG{p}{),} \PYG{n+nv}{Students}\PYG{p}{).} \end{Verbatim}