a-a a-b a-i a-t aaa aab aai aak aam aas aat ab- aba abb abi abk abm abs abt ai- aia aib aii aik aim ais ait aka akb aki akk akm aks ama amb ami amk amm ams amt as- asa asb asi ask asm ass ast at- ata atb ati atm ats att baa bab bai bak bam bas bat bba bbb bbi bbk bbm bbs bbt bi- bia bib bii bik bim bis bit bka bkb bkk bkm bks bkt bma bmb bmi bmk bmm bms bmt bsa bsb bsi bsk bsm bss bst bta btb bti btk btm bts btt ia- iaa iab iai iam ias iat iba ibb ibi ibk ibm ibs ibt iia iib iii iim iis iit ika ikb iki ikk iks ikt im- ima imb imi imm ims imt is- isa isb isi isk ism iss ist ita itb iti itk itm its itt k-t ka- kaa kab kai kak kam kas kat kba kbb kbi kbk kbm kbs kia kib kii kik kim kis kit kkb kki kkk kkm kks kkt kma kmb kmi kmk kmm kms kmt ksa ksb ksi ksk ksm kss kst kta ktb ktk ktm kts ktt maa mab mai mak mam mas mat mba mbb mbi mbk mbm mbs mbt mi- mia mib mii mik mim mis mit mka mkb mkk mkm mks mkt mma mmb mmi mmk mmm mms mmt msa msb msi msk msm mss mst mta mtb mti mtk mtm mts mtt saa sab sai sak sam sas sat sba sbb sbi sbk sbm sbs sbt sia sib sii sik sim sis sit sk- ska skb ski skk skm sks skt sma smb smi smk smm sms smt ss- ssa ssb ssi ssk ssm sss sst sta stb sti stk stm sts stt taa tab tai tak tam tas tat tba tbb tbi tbk tbm tbs tbt tia tib tii tik tim tis tit tka tkb tkk tkm tks tkt tma tmb tmi tmk tmm tms tmt tsa tsb tsi tsk tsm tss tst tta ttb tti ttk ttm tts ttt