a-a a-b a-t aaa aab aak aam aao aar aat aay ab- aba abb abk abm abo abr abt aby aka akb akk akm ako akr ama amb amk amm amo amr amt amy aoa aob aok aom aoo aor aot ar- ara arb ark arm aro arr art ary at- ata atb atm ato atr att ay- aya ayk ayo ayr ayt baa bab bak bam bao bar bat bay bba bbb bbk bbm bbo bbr bbt bby bka bkb bkk bkm bko bkr bkt bma bmb bmk bmm bmo bmr bmt boa bob bok bom boo bor bot boy bra brb brk brm bro brr brt bry bta btb btk btm bto btr btt bty by- bya byk bym byo byr byt k-t ka- kaa kab kak kam kao kar kat kay kba kbb kbk kbm kbo kbr kkb kkk kkm kkr kkt kky kma kmb kmk kmm kmo kmt koa kob kok kom koo kor kot koy kra krk kro krr krt kry kta ktb ktk ktm kto ktr ktt kya kym kyo kyr kyt m-o m-r maa mab mak mam mao mar mat may mba mbb mbk mbm mbo mbr mbt mka mkb mkk mkm mko mkr mkt mky mma mmb mmk mmm mmo mmr mmt moa mob mok mom moo mor mot moy mra mrb mrk mrm mro mrr mrt mry mta mtb mtk mtm mto mtr mtt my- mya myb myk mym myo myr myt oaa oab oak oam oao oar oat ob- oba obb obk obm obo obr obt oby oka okb okk oko okr om- oma omb omm omo omr omt omy oo- ooa oob ook oom ooo oor oot or- ora orb ork orm oro orr ort ory ot- ota otb otk otm oto otr ott oya oyo ra- raa rab rak ram rao rar rat ray rba rbb rbk rbm rbo rbr rbt rkb rkk rkm rko rkt rky rma rmb rmm rmo rmr rmt roa rob rok rom roo ror rot roy rra rrb rrk rrm rrr rrt rta rtb rtk rtm rto rtr rtt rty ry- rya ryk rym ryo ryr ryy taa tab tak tam tao tar tat tay tba tbb tbk tbm tbo tbr tbt tka tkb tkk tkm tko tkr tkt tky tma tmb tmk tmm tmo tmr tmt tmy to- toa tob tok tom too tor tot toy tra trb trk trm tro trr trt try tta ttb ttk ttm tto ttr ttt tty tya tym tyo tyr tyt yaa yab yak yam yao yar yat yay ybm ybr yby yka ykk ykm yma ymm ymo ymt yob yok yom yoo yor yot yoy yra yro yrt yta ytk ytm yto ytr ytt yyb yyt yyy