a-ak a-be aaaa aaab aaad aaae aaar aaav aaba aabb aabd aada aade aaea aaev aaka aake aara aard aare aava abaa abab abad abae abak abar abb- abba abbb abbe abbr abda abed abee aber abra abva abvd adaa adab adad adae adak adar adba adda addd adde addr adea adeb adee ader adra adre advb aede aeer aeka aer- aera aerd aeva akaa akae akar aked akee aker akka akr- akra akre arab arad arae arak arar arba arbe arda arde area ared aree arek arev arka arke arr- arra arre arrk arrr arva arve avab avar avda avea aver avra avre avva baaa baad baak baar baba babb babe babr bada badb badd bade badr baed baek baer bak- baka bake bakr bar- bara barb bard bare bark barr bava bave bbad bbbb bbdd bbeb bd-r bdav bead beak bear beav beba bebb bebe beda bede beeb beed beek beer beka beke bera berd bere berk berr brab brad brae brak brav brda brea breb bred bree brek brer brev brka brkb brrr daab daad daae daar daba dabb dada dade daeb daer daka dake dara darb dard dare dark darr dava dave dbar dddd ddre dead deae deak dear deba debe deda dedd dede deeb deed deek deer deev dek- deka deke der- dera derb dere derk derr derv deva deve dkba draa drab drad drak drar drba drda drea dred dree drek drev drra dvar dvda dvdr dvra eaba eada eadb eadd eara earb eard eare eave ebba ebbr ebed eber edad edar edda edde ede- edea eder edra edve eede eeea eeee eeka eeke eera eeva eka- ekab ekeb eked ekek eker ekka erad erba erbb erbe erda erde ereb ered erer erev erke erra erre erve evae evar evdb evea ever evra evre evvk kaaa kaab kaak kaar kaba kabb kabd kabe kabr kad- kada kadd kade kadr kadv kaer kaka kake kakk kara karb kard kare kark karr karv kava kavb kave kavv kbaa kbab kbad kbae kbak kbar kbba kbbb kbbd kbbe kbbk kbbr kbdb kbde kbdr kbdv kbeb kbed kbee kbek kber kbev kbkb kbkk kbkr kbkv kbra kbrb kbrd kbre kbrk kbrv kbva kbvb kbvr kdaa kdab kdad kdae kdak kdar kdav kdbb kdbr kdbv kddb kddd kddk kddr kdeb kdka kdkb kdkd kdkk kdkr kdrb kdrv kdva kdvb kdvr kdvv kea- kead keak kear keba kebb kebe kebr keda kedb kedd kede kedr keed keek keer keka kekb keke ker- kera kerb kere kerk kerr kerv keva keve kkaa kkar kkba kkbb kkbd kkbe kkbr kkda kkdd kkdv kkea kked kkkk kkrb kkre kkrk kkrr kkrv kkvr kkvv krab krad krae krak krar krav krba krbb krbd krbe krbk krbr krda krdd krde krdr krea kreb kred kree krek krev krka krkd krke krkk krkr krkv krrb krre krrk krrr krva krvb krve krvk krvr krvv kvab kvak kvar kvbr kvda kvea kver kvra kvre kvrr kvrv kvvr kvvv raab raad raak raba rabb rabe rabk rada radd rade radr raed raer raka rake rakk rara rarb rare rark rava rave rbbb rbbr rder rdev rea- read reae reak rear reba rebb rebe rebk reda redd rede redr reeb reed reek reev reka reke rera rerd rere reva revd reve rrad rred rrrr rved rver vaad vaar vada vade vaka vake vara vard vare vark varr vava vder vdre veak vear veba veda vede veer veka veke ver- vera verb verd vere verk veve vrak vrav vrba vred vver vvvv