a-a a-b a-i a-t aaa aab aai aam aas aat aau ab- aba abb abi abm abs abt abu ai- aia aib aii aim ais ait aiu ama amb ami amm ams amt amu as- asa asb asi asm ass ast asu at- ata atb ati atm ats att atu au- aua aub aui aum aus aut b-u baa bab bai bam bas bat bau bba bbb bbi bbm bbs bbt bbu bi- bia bib bii bim bis bit biu bma bmb bmi bmm bms bmt bmu bsa bsb bsi bsm bss bst bsu bta btb bti btm bts btt btu bua bub bui bum bus but buu ia- iaa iab iai iam ias iat iau iba ibb ibi ibm ibs ibt ibu iia iib iii iim iis iit iiu im- ima imb imi imm ims imt imu is- isa isb isi ism iss ist isu ita itb iti itm its itt itu iu- iua iub iui ium ius iut maa mab mai mam mas mat mau mba mbb mbi mbm mbs mbt mbu mi- mia mib mii mim mis mit miu mma mmb mmi mmm mms mmt mmu msa msb msi msm mss mst msu mta mtb mti mtm mts mtt mtu mua mub mui mum mus mut muu saa sab sai sam sas sat sau sba sbb sbi sbm sbs sbt sbu sia sib sii sim sis sit siu sma smb smi smm sms smt smu ss- ssa ssb ssi ssm sss sst ssu sta stb sti stm sts stt stu sua sub sui sum sus sut suu taa tab tai tam tas tat tau tba tbb tbi tbm tbs tbt tbu tia tib tii tim tis tit tiu tma tmb tmi tmm tms tmt tmu tsa tsb tsi tsm tss tst tsu tta ttb tti ttm tts ttt ttu tua tub tui tum tus tut tuu ua- uaa uab uai uam uas uat uau uba ubb ubi ubs ubt ubu uia uib uii uim uis uit uiu um- uma umb umi umm ums umt umu usa usb usi usm uss ust usu uta utb uti utm uts utt utu uua uum uus uut uuu