sup1.AXMathSuperscript.AXChildren.count=1
sup1.AXMathSuperscript.AXChildren[0].AXValue='2'
sup2.AXMathSuperscript=NULL
subsup1.AXMathSuperscript.AXChildren.count=1
subsup1.AXMathSuperscript.AXChildren[0].AXValue='3'
subsup2.AXMathSuperscript=NULL