\end{displaymath}
\end{exercise}
-\myincludegraphics{step1}{t}{12cm}{Example session, snapshot 1.}
- {Example session, snapshot 1.}
+\myincludegraphics{step1}{t}{12cm}{Example session.}
+ {Example session.}
%\myincludegraphics{step2}{t}{4cm}{Example session, snapshot 2.}
% {Example session, snapshot 2.}