a-a a-b a-i aaa aab aah aai aar aay ab- aba abb abh abi abr aby aha ahb ahh ahi ahr ahy ai- aia aib aih aii air aiy ar- ara arb arh ari arr ary ay- aya ayh ayi ayr baa bab bah bai bar bay bba bbb bbh bbi bbr bby bha bhb bhh bhi bhr bi- bia bib bih bii bir biy bra brb brh bri brr bry by- bya byh byi byr h-i haa hab hah hai har hay hba hbb hbh hbi hbr hby hha hhb hhh hhi hhr hhy hia hib hih hii hir hr- hra hrb hrh hri hrr hy- hya hyb hyh hyi hyr hyy ia- iaa iab iah iai iar iba ibb ibh ibi ibr iby iha ihb ihh ihi ihr ihy iia iib iih iii iir ir- ira irb iri irr iry iya iyr iyy ra- raa rab rah rai rar ray rba rbb rbh rbi rbr rh- rha rhb rhh rhi rhr ria rib rih rii rir riy rra rrb rrh rri rrr ry- rya ryr ryy yaa yab yah yai yar yay ybi ybr yby yha yhi yih yii yir yra yyb yyy