a-a a-b aaa aab aah aak aar aay ab- aba abb abh abk abr aby aha ahb ahh ahk ahr ahy aka akb akh akk akr ar- ara arb arh ark arr ary ay- aya ayh ayk ayr baa bab bah bak bar bay bba bbb bbh bbk bbr bby bha bhb bhh bhk bhr bka bkb bkk bkr bra brb brh brk brr bry by- bya byh byk byr haa hab hah hak har hay hba hbb hbh hbk hbr hby hha hhb hhh hhk hhr hhy hka hkb hkh hkk hkr hr- hra hrb hrh hrk hrr hy- hya hyb hyh hyr hyy ka- kaa kab kah kak kar kay kba kbb kbh kbk kbr kha khh khk khr kkb kkh kkk kkr kky kra krk krr kry kya kyr ra- raa rab rah rak rar ray rba rbb rbh rbk rbr rh- rha rhb rhh rhr rkb rkk rky rra rrb rrh rrk rrr ry- rya ryk ryr ryy yaa yab yah yak yar yay ybr yby yha yka ykk yra yyb yyy