a-a a-b aaa aab aah aak aar aau ab- aba abb abh abk abr abu aha ahb ahh ahk ahr ahu aka akb akh akk akr aku ar- ara arb arh ark arr aru au- aua aub auh auk aur b-u baa bab bah bak bar bau bba bbb bbh bbk bbr bbu bha bhb bhh bhk bhr bhu bka bkb bkk bkr bra brb brh brk brr bru bua bub buh buk bur buu haa hab hah hak har hau hba hbb hbh hbk hbr hbu hha hhb hhh hhk hhr hhu hka hkb hkh hkk hkr hku hr- hra hrb hrh hrk hrr hru hua hub huh huk hur huu ka- kaa kab kah kak kar kau kba kbb kbh kbk kbr kbu kha khh khk khr khu kkb kkh kkk kkr kku kra krk krr kru kub kuh kuk kur kuu ra- raa rab rah rak rar rau rba rbb rbh rbk rbr rbu rh- rha rhb rhh rhr rhu rkb rkk rku rra rrb rrh rrk rrr rru rua rub ruh ruk rur ruu ua- uaa uab uah uak uar uau uba ubb ubh ubk ubr ubu uha uhb uhh uhr uhu uka ukb ukk ukr uku ur- ura urb urk urr uru uua uur uuu