a-a a-b a-i aaa aab aai aan aas aau aax ab- aba abb abi abn abs abu abx ai- aia aib aii ain ais aiu aix an- ana anb ani ann ans anu anx as- asa asb asi asn ass asu asx au- aua aub aui aun aus aux ax- axa axi axn axs axx b-u baa bab bai ban bas bau bax bba bbb bbi bbn bbs bbu bbx bi- bia bib bii bin bis biu bix bna bnb bni bnn bns bnu bnx bsa bsb bsi bsn bss bsu bsx bua bub bui bun bus buu bux bxb bxi bxn bxx ia- iaa iab iai ian ias iau iba ibb ibi ibn ibs ibu ibx iia iib iii iin iis iiu iix in- ina inb ini inn ins inu inx is- isa isb isi isn iss isu iu- iua iub iui ius ixi ixn n-i naa nab nai nan nas nau nax nba nbb nbi nbn nbs nbu nbx nia nib nii nin nis niu nix nna nnb nni nnn nns nnu nsa nsb nsi nsn nss nsu nsx nua nub nui nun nus nuu nux saa sab sai san sas sau sax sba sbb sbi sbn sbs sbu sbx sia sib sii sin sis siu six sna snb sni snn sns snu ss- ssa ssb ssi ssn sss ssu ssx sua sub sui sun sus suu sux sxi sxn sxs sxu ua- uaa uab uai uan uas uau uba ubb ubi ubn ubs ubu ubx uia uib uii uin uis uiu un- una unb uni unn uns unu unx usa usb usi usn uss usu usx uua uun uus uuu uxb uxu xaa xan xas xau xbx xia xii xin xis xiu xix xna xns xnu xsa xsb xsi xss xui xun xus xxi xxx