a-a a-b aaa aab aah aan aar aay ab- aba abb abh abn abr aby aha ahb ahh ahn ahr ahy an- ana anb anh ann anr any ar- ara arb arh arn arr ary ay- aya ayh ayn ayr baa bab bah ban bar bay bba bbb bbh bbn bbr bby bha bhb bhh bhr bna bnb bnn bnr bra brb brh brn brr bry by- bya byh byn byr haa hab hah han har hay hba hbb hbh hbn hbr hby hha hhb hhh hhn hhr hhy hna hnb hnh hnn hny hr- hra hrb hrh hrn hrr hy- hya hyb hyh hyn hyr hyy naa nab nah nan nar nay nba nbb nbn nbr nha nhb nhh nhn nhr nhy nna nnb nnh nnn nra nrb nrn nrr nry nya nyn nyy ra- raa rab rah ran rar ray rba rbb rbh rbn rbr rh- rha rhb rhh rhn rhr rna rnb rnh rnn rnr rny rra rrb rrh rrn rrr ry- rya ryn ryr ryy yaa yab yah yan yar yay ybr yby yha yna ynn yny yra yrn yyb yyy