AXWebArea AXRoleDescription='HTML content'
++AXTabGroup AXRoleDescription='tab group'
++++AXRadioButton AXSubrole=AXTabButton AXRoleDescription='tab' AXTitle='Tab 1, level 1' AXValue=0
++++AXRadioButton AXSubrole=AXTabButton AXRoleDescription='tab' AXTitle='Tab 2, level 1' AXValue=0
++++AXTabGroup AXRoleDescription='tab group'
++++++AXRadioButton AXSubrole=AXTabButton AXRoleDescription='tab' AXTitle='Tab 1, level 2' AXValue=0
++++++AXRadioButton AXSubrole=AXTabButton AXRoleDescription='tab' AXTitle='Tab 2, level 2' AXValue=0
++++++++AXStaticText AXRoleDescription='text' AXValue='Tab 2, level 2'
++++++++AXTabGroup AXRoleDescription='tab group'
++++++++++AXRadioButton AXSubrole=AXTabButton AXRoleDescription='tab' AXTitle='Tab 1, level 3' AXValue=0
++++AXRadioButton AXSubrole=AXTabButton AXRoleDescription='tab' AXTitle='Tab 3, level 1' AXValue=0