raua raub rauc rauk raut rbbb rbbr rcac rcbc rccb rccc rcic rctc rcti riaa riab riai riak riat riau rib- riba ribu rica ricc rick rict riia rika riki rikk riku riri rita riti ritt ritu rrat rrrr rtai rtca rtcc ruba rubb rubi rubu ruca ruci ruck ruct ruit ruka ruki rukk ruku rura rurc ruri ruru ruta ruti rutt rutu taa- taar taat taba tabb tabc tabi tabu taca tacc taci tack tact taia taik tair tait taka taki takk takt taku tara tarb tarc tari tark tarr tart taru tata tatb tati tatr tatt tatu taua taub tauc tauk taur taut tbar tbca tbcb tbcc tbit tbrb tbta tcca tccc tccu tctc tiaa tiab tiar tiba tibi tibu tica ticc tick tiit tiiu tika tiki tiku tira tirb tiri tirr tiru tita titc titi titt titu tkac traa trab trac trai trak trat trau trca trcc tri- tria trib tric trik trit trra trtc trtr trub truc truk trut truu ttab ttbb tttt tuak tuar tuat tuba tubb tubr tubu tuca tucc tuck tuik tuit tuiu tuka tura turb turc turi turk turr turt turu tuta tuti tutt tutu uabc uaca uair uarc uart uaru uata uatu uaua ubac ubar ubba ubbi ubic ubii ubik ubir ubit ubra ucai ucak ucar ucat ucbc ucca ucci ucka ucrc ucua ucut uica uira uirr ukai ukba ukcc ukra ukrc ukta ukur urac urai urat urau urba urbi urca urci uria urib uric urik uriu urka urra urri uruk urur urut utac utai utau utia utik utri utti uttu uuri uuta uuuu