a-a a-b a-c a-t aaa aab aac aak aam aas aat aau ab- aba abb abc abk abm abs abt abu ac- aca acb acc ack acm acs act acu aka akb akc akk akm aks aku ama amb amc amk amm ams amt amu as- asa asb asc ask asm ass ast asu at- ata atb atc atm ats att atu au- aua aub auc auk aum aus aut b-u baa bab bac bak bam bas bat bau bba bbb bbc bbk bbm bbs bbt bbu bca bcb bcc bck bcm bcs bct bcu bka bkb bkc bkk bkm bks bkt bma bmb bmc bmk bmm bms bmt bmu bsa bsb bsc bsk bsm bss bst bsu bta btb btc btk btm bts btt btu bua bub buc buk bum bus but buu c-- caa cab cac cak cam cas cat cau cba cbb cbc cbk cbm cbs cbt cbu cca ccb ccc cck ccm ccs cct ccu cka ckb ckc ckm cks ckt cma cmb cmc cmk cmm cms cmt cmu csa csb csc csk csm css cst csu cta ctb ctc ctk ctm cts ctt ctu cua cub cuc cuk cum cus cut cuu k-t ka- kaa kab kac kak kam kas kat kau kba kbb kbc kbk kbm kbs kbu kca kcb kcc kck kcm kcs kct kcu kkb kkc kkk kkm kks kkt kku kma kmb kmc kmk kmm kms kmt kmu ksa ksb ksc ksk ksm kss kst ksu kta ktb ktc ktk ktm kts ktt ktu kub kuc kuk kum kus kut kuu maa mab mac mak mam mas mat mau mba mbb mbc mbk mbm mbs mbt mbu mc- mca mcb mcc mck mcm mcs mct mcu mka mkb mkc mkk mkm mks mkt mku mma mmb mmc mmk mmm mms mmt mmu msa msb msc msk msm mss mst msu mta mtb mtc mtk mtm mts mtt mtu mua mub muc muk mum mus mut muu saa sab sac sak sam sas sat sau sba sbb sbc sbk sbm sbs sbt sbu sca scb scc sck scm scs sct scu sk- ska skb skc skk skm sks skt sku sma smb smc smk smm sms smt smu ss- ssa ssb ssc ssk ssm sss sst ssu sta stb stc stk stm sts stt stu sua sub suc suk sum sus sut suu taa tab tac tak tam tas tat tau tba tbb tbc tbk tbm tbs tbt tbu tca tcb tcc tck tcm tcs tct tcu tka tkb tkc tkk tkm tks tkt tma tmb tmc tmk tmm tms tmt tmu tsa tsb tsc tsk tsm tss tst tsu tta ttb ttc ttk ttm tts ttt ttu tua tub tuc tuk tum tus tut tuu ua- uaa uab uac uak uam uas uat uau uba ubb ubc ubk ubs ubt ubu uca ucb ucc uck ucm ucs uct ucu uka ukb ukc ukk uku um- uma umb umc umm ums umt umu usa usb usc usk usm uss ust usu uta utb utc utk utm uts utt utu uua uuc uum uus uut uuu