a-ak a-ii aaaa aaab aaai aaar aaba aabb aabi aabt aaib aaii aaka aara aari aart aata aatk aatt abaa abab abai abak abar abat abb- abba abbb abbi abbr abbt abia abib abir abit abra abri abta aiai aiba aiia aiib aiir aika aiki aira airi airt aita aiti aitr aitt akaa akai akar akia akik akir akka akki akr- akra arab arai arak arar arat arba arbi aria arib arii arik arit arka arki arr- arra arri arrk arrr arrt arta arti artr at-t ataa atab atai atak atar atat atia atik atit atka atkt atra atri atrk atta atti attr ba-i baaa baak baar baat baba babb babi babr baia baib baik bair bait bak- baka baki bakr bakt bar- bara barb bari bark barr bart bata bati batt bbbb biak biar biat biba bibb bibi bira birb biri birk birr birt bita bitt brab brai brak brat bria brik brit brka brkb brrr btaa btrt bttb iaaa iaai iaat iaba iaia iara iart iata iati ibar ibat ibia ibra ibri ibtb iiii iiit iira iita iitr iitt ikar ikat ikki ikra ikri irai irak irar iri- iria irka irki irra irri irta irti itaa itai itak itar itat itia itra itri itta kaaa kaab kaai kaak kaar kaat kaba kabb kabi kabr kaia kaib kaii kaik kair kait kaka kaki kakk kakt kara karb kari kark karr kart kat- kata katb kati katk katr katt kbaa kbab kbai kbak kbar kbat kbba kbbb kbbi kbbk kbbr kbbt kbia kbib kbik kbit kbkb kbkk kbkr kbra kbrb kbri kbrk kbrt kbta kbtb kbtk kbtr kbtt kiab kiai kiar kiba kibb kibi kibr kibt kiia kiii kiik kiit kika kiki kikk kikr kikt kira kirb kiri kirk kirr kirt kita kiti kitr kitt kkaa kkai kkar kkat kkba kkbb kkbi kkbr kkbt kkia kkik kkit kkkk kkrb kkrk kkrr kkrt kktk krab krai krak krar krat krba krbb krbi krbk krbr krbt kria krib krik krit krka krki krkk krkr krrb krri krrk krrr krrt krta krti krtk krtr ktaa ktai ktak ktar ktat ktba ktbb ktbr ktbt ktia ktib ktik ktkb ktkk ktkr ktkt ktrb ktri ktrk ktrr ktrt ktti kttk kttr kttt raab raak raat raba rabb rabi rabk raia raii raik rair rait raka raki rakk rakt rara rarb rari rark rata rati ratk ratt rbbb rbbr riaa riab riai riak riat rib- riba riia rika riki rikk riri rita riti ritt rrat rrrr rtai taa- taar taat taba tabb tabi taia taik tair tait taka taki takk takt tara tarb tari tark tarr tart tata tatb tati tatr tatt tbar tbit tbrb tbta tiaa tiab tiar tiba tibi tiit tika tiki tira tirb tiri tirr tita titi titt traa trab trai trak trat tri- tria trib trik trit trra trtr ttab ttbb tttt