Making parent menu in emacs

Am trying to make a parent menu in emacs. Have traversed the "Emacs Lisp Reference" to "23.17 Menu Keymaps" with an example in "23.17.4 Menu Example".

But cannot get the parent menu to show up.

This is how I make the parent menu "xepty-menu".

(define-key global-map [xepty-menu words]
  (cons "Xepty" (make-sparse-keymap "Xepty")))

Do the examples in the link below help at all?

https://stackoverflow.com/questions/...f-parent-modes

I think the link is about a different topic.