a-a a-b a-i aaa aab aai aam aas aau aax ab- aba abb abi abm abs abu abx ai- aia aib aii aim ais aiu aix ama amb ami amm ams amu amx as- asa asb asi asm ass asu asx au- aua aub aui aum aus aux ax- axa axi axm axs axx b-u baa bab bai bam bas bau bax bba bbb bbi bbm bbs bbu bbx bi- bia bib bii bim bis biu bix bma bmb bmi bmm bms bmu bmx bsa bsb bsi bsm bss bsu bsx bua bub bui bum bus buu bux bxb bxi bxm bxx ia- iaa iab iai iam ias iau iba ibb ibi ibm ibs ibu ibx iia iib iii iim iis iiu iix im- ima imb imi imm ims imu imx is- isa isb isi ism iss isu iu- iua iub iui ium ius ixi maa mab mai mam mas mau max mba mbb mbi mbm mbs mbu mbx mi- mia mib mii mim mis miu mix mma mmb mmi mmm mms mmu mmx msa msb msi msm mss msu msx mua mub mui mum mus muu mux mxa mxi mxs mxu saa sab sai sam sas sau sax sba sbb sbi sbm sbs sbu sbx sia sib sii sim sis siu six sma smb smi smm sms smu smx ss- ssa ssb ssi ssm sss ssu ssx sua sub sui sum sus suu sux sxi sxm sxs sxu ua- uaa uab uai uam uas uau uba ubb ubi ubs ubu ubx uia uib uii uim uis uiu um- uma umb umi umm ums umu usa usb usi usm uss usu usx uua uum uus uuu uxb uxu xaa xam xas xau xbx xia xii xis xiu xix xma xmi xmm xms xmu xmx xsa xsb xsi xsm xss xui xus xxi xxx