a-a a-b a-t aaa aab aam aat aau aay ab- aba abb abm abt abu aby ama amb amm amt amu amy at- ata atb atm att atu au- aua aub aum aut ay- aya ayt ayu b-u baa bab bam bat bau bay bba bbb bbm bbt bbu bby bma bmb bmm bmt bmu bta btb btm btt btu bty bua bub bum but buu buy by- bya bym byt byu maa mab mam mat mau may mba mbb mbm mbt mbu mma mmb mmm mmt mmu mta mtb mtm mtt mtu mua mub mum mut muu muy my- mya myb mym myt myu taa tab tam tat tau tay tba tbb tbm tbt tbu tma tmb tmm tmt tmu tmy tta ttb ttm ttt ttu tty tua tub tum tut tuu tuy tya tym tyt ua- uaa uab uam uat uau uay uba ubb ubt ubu uby um- uma umb umm umt umu uta utb utm utt utu uty uua uum uut uuu uyu yaa yab yam yat yau yay ybm yby yma ymm ymt yta ytm ytt ytu yua yum yut yuu yuy yyb yyt yyu yyy