over1.AXMathOver.AXChildren.count=1
over1.AXMathOver.AXChildren[0].AXValue='2'
over2.AXMathOver=NULL
underover1.AXMathOver.AXChildren.count=1
underover1.AXMathOver.AXChildren[0].AXValue='3'
underover2.AXMathOver=NULL