<map id="E" name="E">
<area shape="rect" id="node2" href="$class_d.html" title="D" alt="" coords="57,173,95,200"/>
<area shape="rect" id="node5" href="$class_c.html" title="C" alt="" coords="121,264,159,291"/>
<area shape="rect" id="node3" href="$class_a.html" title="A" alt="" coords="114,5,152,32"/>
<area shape="rect" id="node4" href="$class_b.html" title="B" alt="" coords="114,96,152,123"/>
</map>
