a-a a-b a-z aaa aab aam aan aao aau aaz ab- aba abb abm abn abo abu abz ama amb amm amn amo amu amz an- ana anb anm ann ano anu anz aoa aob aom aon aoo aou au- aua aub aum aun auo auz az- aza azb azm azn azo azu azz b-u baa bab bam ban bao bau baz bba bbb bbm bbn bbo bbu bma bmb bmm bmn bmo bmu bmz bna bnb bnn bno bnu bnz boa bob bom bon boo bou boz bua bub bum bun buo buu buz bza bzn bzo bzu bzz m-o maa mab mam man mao mau maz mba mbb mbm mbo mbu mma mmb mmm mmn mmo mmu mmz mna mnb mnm mnn mno mnu mnz moa mob mom mon moo mou moz mua mub mum mun muu mza mzb mzm mzn naa nab nam nan nao nau naz nba nbb nbm nbn nbo nbu nma nmb nmm nmn nmo nmu nmz nna nnb nnm nnn nno nnu nnz no- noa nob nom non noo nou noz nua nub num nun nuo nuu nzb nzo nzz oaa oab oam oan oao oau ob- oba obb obm obn obo obu om- oma omb omm omn omo omu omz on- ona onb onn ono onu oo- ooa oob oom oon ooo ou- oua oum oun ouo oza ozm ozo ozu ozz ua- uaa uab uam uan uao uau uaz uba ubb ubn ubo ubu um- uma umb umm umn umo umu un- una unb unm unn uno unu uoa uob uom uon uoo uua uum uun uuu uza uzb uzo uzu zaa zab zam zan zao zaz zbb zbm zma zmb zmm znn zno zo- zoa zob zom zon zoo zou zub zum zun zuz zzz