a-be a-ha aaaa aaab aaac aaae aaah aaar aaba aabb aabc aabh aaca aacb aacc aace aach aacr aacu aaea aaec aaha aara aarc aare aaru abaa abab abac abae abar abau abb- abba abbb abbe abbr abca abcb abcc abch abcr abec abee aber abha abhr abra abrc abua abue acaa acab acac acae acar acba acca accc acce acch accu ace- acea acec aceh acer acha ache achh achr achu acr- acra acrc acre acrr acu- acue acur aeac aecb aeer aer- aera aerc ahab ahac ahah ahar ahau ahha ahra ahrc ahre ahrr ahua arab arac arae arah arar arau arba arbe arbh arc- arca arce arch area arec aree areh areu arh- arr- arra arrc arre arrh arrr arru arua arub arue auaa aube auca auce auch auer aur- aura aure baaa baah baar baba babb babe babr babu bac- baca bacc bace bach baer baha bahr bahu bar- bara barb barc bare barh barr baru bau- baur bbau bbbb bbch bbeb bbrc bcaa bcar bcbc bcca bccc bcec bcer bche bcra bcru bcuc beah bear beau beba bebb bebe beca bech becu beeb beer behr bera berc bere berr beru beur bhar bhca bhcc bher bhra bhur bhuu brab brac brae brah brau brca brcb brce brea breb brec bree brer brrr bruc brue bruh buar buba bubb bube bubu buca bucc buce buch bucu buea buer bueu buha buhe buhr bur- bura burb bure burh burr buru caaa caab caac caah caba cabe cabu cac- caca cacc cace cach cacr caec caer caeu caha cahe cara carb carc care carr cauc cbac cbar cbbc cbca cbcc cbce cbcr cbcu cbea cbec cbee cber cbha cbre cbrh ccaa ccab ccac ccar ccba ccbc ccca cccb cccc cccu ccee ccha cche cchr ccra ccrc ccre ccuc ceac cear ceba cebu cec- ceca cece ceeb ceec cer- cera cerc cere chaa chab chac chae chah char chau chca chce chch chea cheb chec chee cheh cher cheu chha chra chrb chrc chrr chua chub chur crab crac crar crau crbc crbu crca crcc crce crcr cre- crea creb crec cree creh creu crub crue cuau cub- cuba cubb cube cuca cucc cuce cuer cura curb cure curr eaba eabh eaca eacc each eaec eara earb eare earh ebac ebba ebbc ebbr ebcc eber ebru ebur ecaa ecac ecar ecbc ecbe ecca eccb eccc ecce echa eche ecra ecrc ecrr ecru ecua eeca eeea eeee eera eerc ehaa ehcc ehea eheh eher eheu ehre erau erba erbb erbe erca ercc erce erch ereb erec erer erhc erhu erra errc erre erua erub eruc eruh erur euba eubc euch euer eur- eura eurc eure haab haar haba habe habu hace haec haha hara harc hare harh harr haru hau- haue hbar hcbc hcca hccb hccc hcch heah hear hebb hebe hebr heca hech heeb heer hehe hera herb herc here herr heru heue heur hhaa hhhh hrac hree hrrc huac huah huba hubb hube huch hucu huea huer huhu hura hure hurr huru huub raab raba rabb rabe rabu rac- raca racc race rach racu raec raer raha rahe rahr rahu rara rarb rare raua raub rauc raue rbbb rbbr rcac rcbc rccb rccc rchb rea- reac reae rear reau reba rebb rebe rebu reca recc rece rech recr recu reeb reha rehb rehe rera rere reru reue reuu rhae rhau rhce rhea rheb rhee rhue rrah rrrr ruah ruba rubb rube rubu ruca ruce ruch ruer ruhe ruhh ruhr rura rurc rure ruru uabc uaca uarc uaru uaua ubac ubar ubba ubbe uber ubra ucar ucbc ucca ucea ucha uche ucrc ucua ueba uher uhuh urac urau urba urbe urca urch ure- urea ureh urra urre urrh urur uuuu