\newenvironment{annotation}{%
  ~\vskip 0.05in                     %space before annotation
  \par\begingroup                  %begin to format the environment
  \leftskip 0.1in\rightskip 0.1in   %set margin
% \def\baselinestretch{2}           %double spacing
  \normalsize                       %font size
  \hskip 2em                        %indent
}{%
  \par\endgroup                   %end of environment
  ~\vskip 0.05in                    %space after annotation
}