a-be a-fu a-ha aaaa aaab aaac aaae aaaf aaah aaar aaba aabb aabc aabh aaca aacb aacc aace aacf aach aacr aacu aaea aaec aafa aafb aafc aaff aaha aara aarc aare aaru abaa abab abac abae abaf abar abau abb- abba abbb abbe abbr abca abcb abcc abcf abch abcr abec abee aber abff abha abhr abra abrc abua abue abuf acaa acab acac acae acar acba acca accc acce accf acch accu ace- acea acec aceh acer acfc acfe acha ache achh achr achu acr- acra acrc acre acrr acu- acue acuf acur aeac aeaf aecb aeer aer- aera aerc afaa afar afca afcb afcc afch afcu afee afer affa affc afr- afra afrc afre afru afua afue ahab ahac ahah ahar ahau ahfa ahha ahra ahrc ahre ahrr ahua arab arac arae araf arah arar arau arba arbe arbh arc- arca arce arch area arec aree aref areh areu arfa arfb arfc arff arfu arh- arr- arra arrc arre arrh arrr arru arua arub arue auaa aube auca auce auch auer aufc aufe aur- aura aure baaa baaf baah baar baba babb babe babr babu bac- baca bacc bace bach baer bafc baff baha bahr bahu bar- bara barb barc bare barf barh barr baru bau- bauf baur bbau bbbb bbch bbeb bbfc bbrc bcaa bcar bcbc bcca bccc bcec bcer bcfc bche bcra bcru bcuc beaf beah bear beau beba bebb bebe beca bech becu beeb beef beer befa befe beff behr bera berc bere berr beru beur bfca bhar bhca bhcc bher bhff bhra bhur bhuu brab brac brae braf brah brau brca brcb brce brea breb brec bree bref brer brfc brfu brrr bruc brue bruh buar buba bubb bube bubu buca bucc buce buch bucu buea buer bueu bufc bufe buff bufr buha buhe buhr bur- bura burb bure burh burr buru caaa caab caac caaf caah caba cabe cabf cabu cac- caca cacc cace cach cacr caec caer caeu cafa cafb cafc cafe caff cafu caha cahe cara carb carc care carf carr cauc cauf cbac cbar cbbc cbca cbcc cbce cbcr cbcu cbea cbec cbee cbef cber cbfb cbfc cbha cbre cbrh ccaa ccab ccac ccaf ccar ccba ccbc ccca cccb cccc cccf cccu ccee ccfa ccfc ccff ccha cche cchr ccra ccrc ccre ccrf ccuc ceac cear ceba cebu cec- ceca cece ceeb ceec cef- cefa cefc cer- cera cerc cere cerf cfaa cfab cfac cfae cfar cfbc cfbr cfca cfcb cfcf cffb cffr cfra cfrb cfre chaa chab chac chae chaf chah char chau chca chce chch chea cheb chec chee chef cheh cher cheu chfa chfc chfr chha chra chrb chrc chrf chrr chua chub chur crab crac craf crar crau crbc crbu crca crcc crce crcr cre- crea creb crec cree creh creu crfc crub crue cuau cub- cuba cubb cube cuca cucc cuce cuer cufa cufc cuff cura curb cure curf curr eaaf eaba eabh eaca eacc each eaec eafb eara earb eare earh ebac ebba ebbc ebbr ebcc eber ebfc ebru ebur ecaa ecac ecar ecbc ecbe ecca eccb eccc ecce ecef ecfa ecfc ecfr echa eche ecra ecrc ecrf ecrr ecru ecua eeca eeea eeee eefa eefe eera eerc efab efbr efca effa efua ehaa ehcc ehea eheh eher eheu ehre eraf erau erba erbb erbe erca ercc erce erch ereb erec erer erfc erhc erhu erra errc erre erua erub eruc eruh erur euba eubc euch euer eufc eur- eura eurc eure faaa faac faah faba fabe fabu faca facc face fach faeb fafa fafc fafe faff faha fahr fara farb farc fare farr faru faue faur fbar fcab fcar fcba fcca fccf fcch fcra feaf fear feba fece fech feeb feer fefc fefe feff fehr fehu fera ferb ferc fere ferr feru ffar ffcc ffee ffff ffrr frab frac frae frau frbc frcc frea free frfc frub frue fuar fubb fubu fuc- fuca fufc fuff fufu fur- fura fure furr haab haaf haar haba habe habu hace haec hafb hafe haff haha hara harc hare harf harh harr haru hau- haue hauf hbar hbfc hcbc hcca hccb hccc hcch hcfa hcfc heaf heah hear hebb hebe hebr heca hech heeb heef heer hefe hehe hera herb herc here herr heru heue heur hfba hfce hhaa hhhh hrac hree hrfc hrrc huac huah huba hubb hube huch hucu huea huer hufc hufe huff hufu huhu hura hure hurr huru huub raab raaf raba rabb rabe rabu rac- raca racc race rach racu raec raef raer rafa rafc rafe raff raha rahe rahr rahu rara rarb rare rarf raua raub rauc raue rauf rbaf rbbb rbbr rcac rcaf rcbc rccb rccc rcfc rchb rea- reac reae reaf rear reau reba rebb rebe rebu reca recc rece rech recr recu reeb reef refe reff refr refu reha rehb rehe rera rere reru reue reuf reuu rfae rfef rffc rhae rhau rhce rhea rheb rhee rhue rrah rrfc rrrr ruah ruba rubb rube rubu ruca ruce ruch ruer rufa rufc rufe ruff ruhe ruhh ruhr rura rurc rure ruru uabc uaca uafa uarc uaru uaua ubac ubar ubba ubbe uber ubra ucar ucbc ucca ucea ucfa ucfb ucha uche ucrc ucua ueba uefa ufcu ufer uffa uffe ufra uher uhuh urac urau urba urbe urca urch ure- urea ureh urfa urfe urff urra urre urrh urur uuuu