a-ak aaaa aaac aaar aaca aacc aack aacr aacu aaka aaku aara aarc aaru acaa acac acar acca accc accu acr- acra acrc acrr acu- acur akaa akar akca akka akku akr- akra akua arac arak arar arau arc- arca arka arr- arra arrc arrk arrr arru arua auaa auca aur- aura caaa caac cac- caca cacc cack cacr caka cara carc cark carr cauc cauk ccaa ccac ccar ccca cccc cccu ccra ccrc ccuc ckac ckck ckrc crac crar crau crca crcc crcr crkc cruk cuau cuca cucc cuck cuk- cuka cura curr kaaa kaak kaar kacc kacu kaka kakc kakk kaku kara kark karr karu kau- kauc kauk kaur kcaa kcac kcar kcau kcca kccc kcck kccr kccu kckc kckk kckr kcrc kcrr kcru kcua kcuk kkaa kkac kkar kkck kkcr kkkk kkrc kkrk kkrr kkua kkuu krac krak krar krca krcc krcu krka krkc krkk krkr krku krrc krrk krrr krua kruc kruk krur kuac kuar kuau kuca kucc kucr kuka kukk kuku kura kurk kurr kuru kuuk kuur kuuu raak rac- raca racc rack racu raka rakk raku rara rark raua rauc rauk rcac rccc rrrr ruca ruck ruka rukk ruku rura rurc ruru uaca uarc uaru uaua ucak ucar ucca ucka ucrc ucua ukcc ukra ukrc ukur urac urau urca urka urra uruk urur uuuu