UNOPTED

de do ed en et ne no nu od oe on op pe to un up ut

den doe don dot due dun duo dup end eon net nod not nut ode one ope opt oud out ped pen pet pod pot pud pun put ted ten tod toe ton top tun tup udo upo ute

dent done dope dote duet dune dunt dupe node nope note nude oped open pend pent peon poet pond pone pout punt tend toed tone tope tune udon unde undo unto updo upon