AXWebArea AXRoleDescription='HTML content'
    AXButton AXRoleDescription='button' AXTitle='Regular button'
    AXCheckBox AXSubrole=AXToggleButton AXRoleDescription='toggle button' AXTitle='Toggle button unpressed' AXValue='0'
    AXCheckBox AXSubrole=AXToggleButton AXRoleDescription='toggle button' AXTitle='Toggle button pressed' AXValue='1'
    AXCheckBox AXSubrole=AXToggleButton AXRoleDescription='toggle button' AXTitle='Toggle button mixed' AXValue='2'