a-a a-b a-t aaa aab aak aan aao aar aat aay ab- aba abb abk abn abo abr abt aby aka akb akk akn ako akr an- ana anb ank ann ano anr ant any aoa aob aok aon aoo aor aot ar- ara arb ark arn aro arr art ary at- ata atb atn ato atr att ay- aya ayk ayn ayo ayr ayt baa bab bak ban bao bar bat bay bba bbb bbk bbn bbo bbr bbt bby bka bkb bkk bkn bko bkr bkt bna bnb bnk bnn bno bnr bnt boa bob bok bon boo bor bot boy bra brb brk brn bro brr brt bry bta btb btk btn bto btr btt bty by- bya byk byn byo byr byt k-t ka- kaa kab kak kan kao kar kat kay kba kbb kbk kbn kbo kbr kkb kkk kkn kkr kkt kky kn- kna knk knn kno knr knt koa kob kok kon koo kor kot koy kra krk krn kro krr krt kry kta ktb ktk ktn kto ktr ktt kya kyn kyo kyr kyt naa nab nak nan nao nar nat nay nba nbb nbk nbn nbo nbr nbt nka nkk nkn nko nkr nkt nky nna nnb nnk nnn nno nnt no- noa nob nok non noo nor not noy nra nrb nrk nrn nro nrr nrt nry nta ntb ntk ntn nto ntr ntt nya nyk nyn nyo nyt nyy oaa oab oak oan oao oar oat ob- oba obb obk obn obo obr obt oby oka okb okk oko okr on- ona onb onk onn ono onr ont ony oo- ooa oob ook oon ooo oor oot or- ora orb ork orn oro orr ort ory ot- ota otb otk otn oto otr ott oya oyo ra- raa rab rak ran rao rar rat ray rba rbb rbk rbn rbo rbr rbt rkb rkk rko rkt rky rna rnb rnn rno rnr rnt rny roa rob rok ron roo ror rot roy rra rrb rrk rrn rrr rrt rta rtb rtk rtn rto rtr rtt rty ry- rya ryk ryn ryo ryr ryy taa tab tak tan tao tar tat tay tba tbb tbk tbn tbo tbr tbt tka tkb tkk tko tkr tkt tky tna tnb tnk tnn tno tnr tnt to- toa tob tok ton too tor tot toy tra trb trk trn tro trr trt try tta ttb ttk ttn tto ttr ttt tty tya tyn tyo tyr tyt yaa yab yak yan yao yar yat yay ybr yby yka ykk ykn yna ynk ynn yny yob yok yon yoo yor yot yoy yra yrn yro yrt yta ytk ytn yto ytr ytt yyb yyt yyy