\setlength{\unitlength}{0.0125in}%
\begin{picture}(360,72)(20,745)
\thicklines
\put(300,790){\vector( 1, 0){ 70}}
\put(280,800){\line( 1, 0){ 40}}
\put(280,805){\line( 0,-1){ 25}}
\put(280,780){\line( 1, 0){ 40}}
\put(320,780){\line( 0, 1){ 25}}
\put(220,800){\line( 1, 0){ 40}}
\put( 20,780){\framebox(40,20){}}
\put(100,790){\vector( 1, 0){ 70}}
\put( 80,800){\line( 1, 0){ 40}}
\put( 80,805){\line( 0,-1){ 25}}
\put( 80,780){\line( 1, 0){ 40}}
\put(120,780){\line( 0, 1){ 25}}
\put(225,745){\makebox(0,0)[lb]{\raisebox{0pt}[0pt][0pt]{\elvrm (f) After Cond}}}
\put( 25,745){\makebox(0,0)[lb]{\raisebox{0pt}[0pt][0pt]{\elvrm (e) After Eq}}}
\put(380,785){\makebox(0,0)[lb]{\raisebox{0pt}[0pt][0pt]{\elvrm 1}}}
\put(295,805){\makebox(0,0)[lb]{\raisebox{0pt}[0pt][0pt]{\elvrm S}}}
\put(235,805){\makebox(0,0)[lb]{\raisebox{0pt}[0pt][0pt]{\elvrm V}}}
\put( 35,785){\makebox(0,0)[lb]{\raisebox{0pt}[0pt][0pt]{\elvrm 1}}}
\put(175,785){\makebox(0,0)[lb]{\raisebox{0pt}[0pt][0pt]{\elvrm 1}}}
\put( 95,805){\makebox(0,0)[lb]{\raisebox{0pt}[0pt][0pt]{\elvrm S}}}
\put( 35,805){\makebox(0,0)[lb]{\raisebox{0pt}[0pt][0pt]{\elvrm V}}}
\end{picture}
