a-a a-b a-i aaa aab aai aam aau aax ab- aba abb abi abm abu abx ai- aia aib aii aim aiu aix ama amb ami amm amu amx au- aua aub aui aum aux ax- axa axi axm axx b-u baa bab bai bam bau bax bba bbb bbi bbm bbu bbx bi- bia bib bii bim biu bix bma bmb bmi bmm bmu bmx bua bub bui bum buu bux bxb bxi bxm bxx ia- iaa iab iai iam iau iba ibb ibi ibm ibu ibx iia iib iii iim iiu iix im- ima imb imi imm imu imx iu- iua iub iui ium ixi maa mab mai mam mau max mba mbb mbi mbm mbu mbx mi- mia mib mii mim miu mix mma mmb mmi mmm mmu mmx mua mub mui mum muu mux mxa mxi mxu ua- uaa uab uai uam uau uba ubb ubi ubu ubx uia uib uii uim uiu um- uma umb umi umm umu uua uum uuu uxb uxu xaa xam xau xbx xia xii xiu xix xma xmi xmm xmu xmx xui xxi xxx