-th a-a a-b a-t aaa aab aah aan aao aar aat aay ab- aba abb abh abn abo abr abt aby aha ahb ahh ahn aho ahr aht ahy an- ana anb anh ann ano anr ant any aoa aob aoh aon aoo aor aot ar- ara arb arh arn aro arr art ary at- ata atb ath atn ato atr att ay- aya ayh ayn ayo ayr ayt baa bab bah ban bao bar bat bay bba bbb bbh bbn bbo bbr bbt bby bha bhb bhh bho bhr bht bna bnb bnn bno bnr bnt boa bob boh bon boo bor bot boy bra brb brh brn bro brr brt bry bta btb bth btn bto btr btt bty by- bya byh byn byo byr byt haa hab hah han hao har hat hay hba hbb hbh hbn hbo hbr hbt hby hha hhb hhh hhn hho hhr hht hhy hna hnb hnh hnn hno hnt hny hoa hob hoh hon hoo hor hot hoy hr- hra hrb hrh hrn hro hrr hrt hta htb hth htn hto htr htt hty hy- hya hyb hyh hyn hyo hyr hyt hyy naa nab nah nan nao nar nat nay nba nbb nbn nbo nbr nbt nha nhb nhh nhn nhr nht nhy nna nnb nnh nnn nno nnt no- noa nob noh non noo nor not noy nra nrb nrn nro nrr nrt nry nta ntb nth ntn nto ntr ntt nya nyn nyo nyt nyy oaa oab oah oan oao oar oat ob- oba obb obh obn obo obr obt oby oha ohh ohn oho ohr oht on- ona onb onh onn ono onr ont ony oo- ooa oob ooh oon ooo oor oot or- ora orb orh orn oro orr ort ory ot- ota otb oth otn oto otr ott oya oyo ra- raa rab rah ran rao rar rat ray rba rbb rbh rbn rbo rbr rbt rh- rha rhb rhh rhn rho rhr rht rna rnb rnh rnn rno rnr rnt rny roa rob roh ron roo ror rot roy rra rrb rrh rrn rrr rrt rta rtb rtn rto rtr rtt rty ry- rya ryn ryo ryr ryy taa tab tah tan tao tar tat tay tba tbb tbh tbn tbo tbr tbt th- tha thb thh thn tho thr tht thy tna tnb tnh tnn tno tnr tnt to- toa tob toh ton too tor tot toy tra trb trh trn tro trr trt try tta ttb tth ttn tto ttr ttt tty tya tyn tyo tyr tyt yaa yab yah yan yao yar yat yay ybr yby yha yht yna ynn yny yob yon yoo yor yot yoy yra yrn yro yrt yta yth ytn yto ytr ytt yyb yyt yyy