a-ak a-ok aaaa aaac aaca aacc aack aaco aact aaka aaoo aata aatc aatk aatt ac-t acaa acac acat acca accc acco acct acoa acot acta actc acto actt akaa akao akca akka akko akok akot aoca aotc at-t ataa atac atak atat atca atcc atck atco atka atkt atoc atok atot atta atto caaa caac caat cac- caca cacc cack caco caka cat- cata catc cato catt ccaa ccac ccat ccca cccc ccoc cctc cctt ckac ckat ckck ckco ckoa ckoc ckoo ckot coak coat coca cock coco coct cok- coka coko cook coot cota cotc coto cott ctca ctot ctta kaaa kaak kaat kacc kaco kact kaka kakc kakk kako kakt kaoa kaoc kaok kat- kata katc katk kato katt kcaa kcac kcat kcca kccc kcck kcct kckc kckk kcko kcot kcta kctc kcto kkaa kkac kkat kkck kkco kkct kkkk kkoa kkoo kkot kktc kktk koac koak koca kock koct koka kokc kokk koko kooc kook kooo koot kota kotc kotk koto kott ktaa ktak ktao ktat ktcc ktck ktco ktkc ktkk ktko ktkt ktoc ktok ktoo ktot kttc kttk ktto kttt ocac ocak ocat occa occc occt oct- octa octo okak okka okko okok okot okta okto ooaa ooak oooo otac otak oto- otok otoo otta otto taa- taat taca tacc tack taco tact taka takk tako takt taoa tata tato tatt tcca tccc tctc tkac toat toca tock toco toka toko tooa took toot tota totc toto tott tttt