a-a a-b a-t aaa aab aae aam aan aat aau ab- aba abb abe abm abn abt abu aea aeb aee aem aen aet aeu ama amb ame amm amn amt amu an- ana anb ane anm ann ant anu at- ata atb ate atm atn att atu au- aua aub aue aum aun aut b-u baa bab bae bam ban bat bau bba bbb bbe bbm bbn bbt bbu be- bea beb bee bem ben bet beu bma bmb bme bmm bmn bmt bmu bna bnb bne bnn bnt bnu bta btb bte btm btn btt btu bua bub bue bum bun but buu eaa eab eae eam ean eat eau eba ebb ebe ebm ebn ebt ebu eea eeb eee eem een eet em- ema emb eme emm emn emt emu en- ena enb ene enm enn ent enu eta etb ete etm etn ett etu eu- eua eub eue eun eut maa mab mae mam man mat mau mba mbb mbe mbm mbt mbu mea meb mee mem men met meu mma mmb mme mmm mmn mmt mmu mna mnb mne mnm mnn mnt mnu mta mtb mte mtm mtn mtt mtu mua mub mue mum mun mut muu naa nab nae nam nan nat nau nba nbb nbe nbm nbn nbt nbu ne- nea neb nee nem nen net neu nma nmb nme nmm nmn nmt nmu nna nnb nne nnm nnn nnt nnu nta ntb nte ntm ntn ntt ntu nua nub nue num nun nut nuu taa tab tae tam tan tat tau tba tbb tbe tbm tbn tbt tbu te- tea teb tee tem ten tet teu tma tmb tme tmm tmn tmt tmu tna tnb tne tnm tnn tnt tta ttb tte ttm ttn ttt ttu tua tub tue tum tun tut tuu ua- uaa uab uae uam uan uat uau uba ubb ube ubn ubt ubu uea ueb uee uem uen uet um- uma umb ume umm umn umt umu un- una unb une unm unn unt unu uta utb ute utm utn utt utu uua uue uum uun uut uuu