a-a a-b aaa aab aah aar aau aay ab- aba abb abh abr abu aby aha ahb ahh ahr ahu ahy ar- ara arb arh arr aru ary au- aua aub auh aur ay- aya ayh ayr ayu b-u baa bab bah bar bau bay bba bbb bbh bbr bbu bby bha bhb bhh bhr bhu bra brb brh brr bru bry bua bub buh bur buu buy by- bya byh byr byu haa hab hah har hau hay hba hbb hbh hbr hbu hby hha hhb hhh hhr hhu hhy hr- hra hrb hrh hrr hru hua hub huh hur huu huy hy- hya hyb hyh hyr hyy ra- raa rab rah rar rau ray rba rbb rbh rbr rbu rh- rha rhb rhh rhr rhu rra rrb rrh rrr rru rua rub ruh rur ruu ruy ry- rya ryr ryu ryy ua- uaa uab uah uar uau uay uba ubb ubh ubr ubu uby uha uhb uhh uhr uhu uhy ur- ura urb urr uru ury uua uur uuu uyu yaa yab yah yar yau yay ybr yby yha yhu yra yru yua yuh yur yuu yuy yyb yyu yyy