a-a a-b a-i a-z aaa aab aai aan aau aaz ab- aba abb abi abn abu abz ai- aia aib aii ain aiu aiz an- ana anb ani ann anu anz au- aua aub aui aun auz az- aza azb azi azn azu azz b-u baa bab bai ban bau baz bba bbb bbi bbn bbu bi- bia bib bii bin biu biz bna bnb bni bnn bnu bnz bua bub bui bun buu buz bza bzn bzu bzz ia- iaa iab iai ian iau iaz iba ibb ibi ibn ibu ibz iia iib iii iin iiu in- ina inb ini inn inu iu- iua iub iui iuz iza izi izu izz n-i naa nab nai nan nau naz nba nbb nbi nbn nbu nia nib nii nin niu niz nna nnb nni nnn nnu nnz nua nub nui nun nuu nzb nzi nzz ua- uaa uab uai uan uau uaz uba ubb ubi ubn ubu uia uib uii uin uiu un- una unb uni unn unu uua uun uuu uza uzb uzi uzu zaa zab zai zan zaz zbb zia zib zin ziz znn zub zui zun zuz zzz