ieud iiac iica iicd iida iide iied iiie iiii iira iirc iiuc irac irad irae irai irar irbe irca ircc ircd ircu irda irdc ired iree irer iri- iria iric irid irie irra irrc irre irri iucc iuce iuiu iura raab raad raba rabb rabe rabi rabu rac- raca racc race raci racu rada radc radd rade radr radu raec raed raer raia raic raid raie raii rair raiu rara rarb rare rari raua raub rauc raud raue rbbb rbbr rcac rcbc rccb rccc rcdc rcde rcic rcid rcrd rdac rder rea- reac read reae rear reau reba rebb rebe rebu reca recc recd rece reci recr recu reda redc redd rede redi redr redu reeb reed reia reid reii reir reiu rera rerd rere reri reru reue reuu riaa riab riad riai riau rib- riba ribe ribu rica ricc rice rida ridc ridd ride ridi ried rier rieu riia rire riri riue rrad rred rrrr ruad ruba rubb rube rubi rubu ruca ruce ruci ruda rudd rude rudi rued ruer ruid rura rurc rurd rure ruri ruru ruud u-ie uabc uaca uair uarc uaru uaua ubac ubar ubba ubbe ubbi uber ubic ubid ubii ubir ubra ubud ucad ucai ucar ucbc ucca ucci ucdc ucdd ucea ucrc ucua udaa udad udar udau udbc udca uddi udea uder udic udid udir udra ueba ueda ueir uica uira uirr urac urad urai urau urba urbe urbi urca urci urda urde urdu ure- urea ured uria urib uric urie uriu urra urre urri urur uuri uuuu