oror orra orro orum ouac ouan oucc ouma oun- ouna our- oura ourn ouro ouu- raak raam raan rac- raca racc rack raco racu raka rakk raku rama ramm ramo ramu rana ranc rank rann rano raoc raok raom rara rark raro raua rauc rauk raum raun rcac rccc rcnr rcon rman rmon rnco roak roam roan roar roca rocc rock roco roka rokk roko rokr roku roma romk romm romo rona ronc ronk rono rook room roon roor rora rorc rork roro roru roua rouk roum roun rrkm rrmc rrna rrrr rrum rrun ruan ruca ruck ruka rukk rukn ruku ruma rumm rumo runa runc runk runn runo ruok rura rurc ruro ruru ruun uaca uamc uaoc uarc uaru uaua ucak ucam ucan ucar ucca ucka ucmc ucom ucon ucrc ucua ukcc ukko ukma uknc ukok ukon ukra ukrc ukum ukur umaa umac umak uman umar umka umma ummo umno umok umor umra unaa unac unam unan unar unau unca uncc unco unka unkn unko unma unmc unmr unna unno unon unra unro unum uocc uomo uor- urac uran urao urau urca urka urma urna uro- uroa urok urom uroo urra uruk urum urun urur uuno uuoc uuuu