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