-ene eeee eeke ekek eken eker ekne ekpe ekur enee ener enke enkr enne ennu enp- enue enur epee epen eper eppp eprp eren erer erke erne erpe erre erur euer eur- eure keek keen keep keer keke keku ken- kene kenk kenn kenr kenu kep- kepe kepn kepu ker- kere kerk kern kerp kerr keru keun keup keur kken kkkk kkne kknn kknu kkpk kkpn kkre kkrk kkrn kkrr kkup kkuu knee knek knen knep kneu knkk knnk knnr knpr knrk knue knuk knur kpek kper kpke kpkk kpkr kpne kpnp kppk kppp kppr kpre kprk kprn kprp kprr kpru kpur kree krek kren kreu krke krkk krkn krkr krku krne krnk krnn krnp krnu krpr krpu krre krrk krrn krrr krue kruk krun krup krur kuek kuen kueu kuke kukk kukn kuku kune kunk kunp kunr kunu kupe kupr kupu kure kurk kurr kuru kuuk kuur kuuu n-up neen neep neer neke neku nene nenu nepe nepr nere nerk nerr neru neue neuk neun neur neuu nnnn nnpr nren nrpn nuee nuer nuke nuku nune nunk nunn nupe nure nurn nurp nurr nuru nuuk peek peen peep peer peke pekk pen- pene penk penn penu pepe per- pere perk pern perp perr peru peun peur pneu pnkp pnpp pnup ppen pper pppn pppp ppru ppur pre- pree prek pren prep preu prnp prue pruu pu-e puer pueu puke puku pune punk punu pupe pupu pur- pure purp purr puru reek reen reep reke rene renk renn renu repe repp repr repu rere reru reue reuk reup reuu rppn rrrr rrun ruen ruer ruke rukk rukn ruku rune runk runn rupe rupp rure rurp ruru ruun u-rp ukek ukeu ukup ukur unee unen uner unke unkn unne upen upne upnp uppe uppp uppu upup ure- urke urne urre uruk urun urup urur uuen uuuu