AXWebArea AXRoleDescription='HTML content'
++AXGroup AXRoleDescription='group'
++++AXGroup AXDescription='pipe' AXRoleDescription='group'
++++++AXLink AXDescription='pipe1' AXRoleDescription='link'
AXWebArea AXRoleDescription='HTML content'
++AXGroup AXRoleDescription='group'
++++AXGroup AXDescription='pipe' AXRoleDescription='group'
++++++AXLink AXDescription='pipe1' AXRoleDescription='link'