ordu ore- orea ored orek oren oreo orer orka orke orko orna orne orno oro- oroe orok oron oror orra orro ouad ouan oude ouea oued ouen ouer oun- ouna ound oune our- oura oure ourn ouro ouu- raad raak raan rada radd rade rado radr radu raed raen raer raka rake rakk raku rana rand rane rank rann rano raok rara rare rark raro raua raud raue rauk raun rder rdna rea- read reae reak rean reao rear reau reda redd rede redo redr redu reed reek reen reka reke reko rena rend rene renk renn reno renu reod reou rera rerd rere rero reru reue reuk reuu rnod road roak roan roar roda rodd rode rodo roea roed roen roer roka roke rokk roko rokr roku rona rond rone ronk rono rood rook roon roor rora rore rork roro roru roua roud roue rouk roun rrad rred rrna rrrr rrun ruad ruan ruda rudd rude rudo rued ruen ruer ruka ruke rukk rukn ruku runa rund rune runk runn runo ruok rura rurd rure ruro ruru ruud ruun uaru uaua udaa udad udar udau udea uden uder udon udoo udra uduk udun ueda uend ueno ukek ukeu ukko ukok ukon ukra ukur unaa unan unar unau unda unde undo uned unee unen uner unka unke unkn unko unna unne unno unon unra unro uoke uone uor- uore urad uran urao urau urda urde urdu ure- urea ured urka urke urna urne uro- uroa urok uroo urra urre uruk urun urur uuen uuno uuuu