a-a a-b a-t aaa aab aam aao aar aas aat aay ab- aba abb abm abo abr abs abt aby ama amb amm amo amr ams amt amy aoa aob aom aoo aor aos aot ar- ara arb arm aro arr ars art ary as- asa asb asm aso asr ass ast asy at- ata atb atm ato atr ats att ay- aya ayo ayr ays ayt baa bab bam bao bar bas bat bay bba bbb bbm bbo bbr bbs bbt bby bma bmb bmm bmo bmr bms bmt boa bob bom boo bor bos bot boy bra brb brm bro brr brs brt bry bsa bsb bsm bso bsr bss bst bsy bta btb btm bto btr bts btt bty by- bya bym byo byr bys byt m-o m-r maa mab mam mao mar mas mat may mba mbb mbm mbo mbr mbs mbt mma mmb mmm mmo mmr mms mmt moa mob mom moo mor mos mot moy mra mrb mrm mro mrr mrs mrt mry msa msb msm mso msr mss mst msy mta mtb mtm mto mtr mts mtt my- mya myb mym myo myr mys myt oaa oab oam oao oar oas oat ob- oba obb obm obo obr obs obt oby om- oma omb omm omo omr oms omt omy oo- ooa oob oom ooo oor oos oot or- ora orb orm oro orr ors ort ory os- osa osb osm oso osr oss ost ot- ota otb otm oto otr ots ott oya oyo oys ra- raa rab ram rao rar ras rat ray rba rbb rbm rbo rbr rbs rbt rma rmb rmm rmo rmr rms rmt roa rob rom roo ror ros rot roy rra rrb rrm rrr rrs rrt rsa rsb rsm rso rsr rss rst rta rtb rtm rto rtr rts rtt rty ry- rya rym ryo ryr rys ryy saa sab sam sao sar sas sat say sba sbb sbm sbo sbr sbs sbt sby sma smb smm smo smr sms smt smy soa sob som soo sor sos sot soy sr- sra srb srm sro srr srs srt sry ss- ssa ssb ssm sso ssr sss sst sta stb stm sto str sts stt sty sy- sya syb sym syr sys syt taa tab tam tao tar tas tat tay tba tbb tbm tbo tbr tbs tbt tma tmb tmm tmo tmr tms tmt tmy to- toa tob tom too tor tos tot toy tra trb trm tro trr trs trt try tsa tsb tsm tso tsr tss tst tsy tta ttb ttm tto ttr tts ttt tty tya tym tyo tyr tys tyt yaa yab yam yao yar yas yat yay ybm ybr ybs yby yma ymm ymo yms ymt yob yom yoo yor yos yot yoy yra yro yrs yrt ysa ysb ysm yso ysr yss yst ysy yta ytm yto ytr yts ytt yyb yys yyt yyy