a-a a-b a-t aaa aab aam aar aas aat aay ab- aba abb abm abr abs abt aby ama amb amm amr ams amt amy ar- ara arb arm arr ars art ary as- asa asb asm asr ass ast asy at- ata atb atm atr ats att ay- aya ayr ays ayt baa bab bam bar bas bat bay bba bbb bbm bbr bbs bbt bby bma bmb bmm bmr bms bmt bra brb brm brr brs brt bry bsa bsb bsm bsr bss bst bsy bta btb btm btr bts btt bty by- bya bym byr bys byt m-r maa mab mam mar mas mat may mba mbb mbm mbr mbs mbt mma mmb mmm mmr mms mmt mra mrb mrm mrr mrs mrt mry msa msb msm msr mss mst msy mta mtb mtm mtr mts mtt my- mya myb mym myr mys myt ra- raa rab ram rar ras rat ray rba rbb rbm rbr rbs rbt rma rmb rmm rmr rms rmt rra rrb rrm rrr rrs rrt rsa rsb rsm rsr rss rst rta rtb rtm rtr rts rtt rty ry- rya rym ryr rys ryy saa sab sam sar sas sat say sba sbb sbm sbr sbs sbt sby sma smb smm smr sms smt smy sr- sra srb srm srr srs srt sry ss- ssa ssb ssm ssr sss sst sta stb stm str sts stt sty sy- sya syb sym syr sys syt taa tab tam tar tas tat tay tba tbb tbm tbr tbs tbt tma tmb tmm tmr tms tmt tmy tra trb trm trr trs trt try tsa tsb tsm tsr tss tst tsy tta ttb ttm ttr tts ttt tty tya tym tyr tys tyt yaa yab yam yar yas yat yay ybm ybr ybs yby yma ymm yms ymt yra yrs yrt ysa ysb ysm ysr yss yst ysy yta ytm ytr yts ytt yyb yys yyt yyy