a-ak a-ya aaaa aaab aaac aaar aaba aabb aabc aaby aaca aacb aacc aack aacr aacy aaka aara aarc abaa abab abac abak abar abay abb- abba abbb abbr abby abca abcb abcc abcr abra abrc abry abyc abyy acaa acab acac acar acba acca accc accy acr- acra acrc acrr acry akaa akar akay akca akka akr- akra akyr arab arac arak arar aray arba arby arc- arca arka arky arr- arra arrc arrk arrr arry ary- arya aryk ayar ayay ayca ayra ayrk ayry ayya baaa baak baar baba babb babr baby bac- baca bacc back bak- baka bakr bar- bara barb barc bark barr bary baya bbay bbbb bbrc bcaa bcar bcbc bcca bccc bcra bkcy bkry brab brac brak bray brca brcb brka brkb brrr bry- brya bryk byar byck byrk caaa caab caac caba caby cac- caca cacc cack cacr caka caky cara carb carc cark carr cary cayr cbac cbar cbbc cbca cbcc cbcr cbka cbkr cbry ccaa ccab ccac ccar ccba ccbc ccca cccb cccc ccra ccrc ckac ckbc ckck ckcy ckrc ckry crab crac crar cray crbc crca crcc crcr crkc cry- crya cryb cya- cyaa cyar cyba cybb cybc cyc- cyca cycb cycc cyra cyrk cyy- cyyc kaaa kaab kaak kaar kaay kaba kabb kabc kabr kaby kacb kacc kacy kaka kakc kakk kara karb kark karr kary kaya kbaa kbab kbac kbak kbar kbay kbba kbbb kbbc kbbk kbbr kbca kbcb kbck kbcr kbcy kbkb kbkk kbkr kbky kbra kbrb kbrc kbrk kbry kbya kbyb kbyr kcaa kcab kcac kcar kcba kcbc kcbk kcbr kcca kccb kccc kcck kccr kccy kckc kckk kckr kcky kcrc kcrr kcry kcya kcyk kcyy kkaa kkac kkar kkay kkba kkbb kkbr kkcb kkck kkcr kkcy kkkk kkrb kkrc kkrk kkrr kkya kkyc kkyy krab krac krak krar kray krba krbb krbk krbr krca krcb krcc krka krkc krkk krkr krky krrb krrc krrk krrr krry kryk kryy kyaa kyak kyar kyay kyba kybb kybc kybr kyby kyca kycc kyck kycr kyka kykc kykk kykr kyky kyra kyrc kyrk kyya kyyk kyyy raab raak raba rabb rabk raby rac- raca racc rack racy raka rakk rara rarb rark rary raya rayk rayr rbbb rbbr rcac rcbc rccb rccc rcyc rrrr ryba ryck yaak yaar yaba yacc yack yacy yaka yara yarb yark yarr yary yaya ybry ycab yccc yyyy