a-a a-b aaa aab aah aak aau ab- aba abb abh abk abu aha ahb ahh ahk ahu aka akb akh akk aku au- aua aub auh auk b-u baa bab bah bak bau bba bbb bbh bbk bbu bha bhb bhh bhk bhu bka bkb bkk bua bub buh buk buu haa hab hah hak hau hba hbb hbh hbk hbu hha hhb hhh hhk hhu hka hkb hkh hkk hku hua hub huh huk huu ka- kaa kab kah kak kau kba kbb kbh kbk kbu kha khh khk khu kkb kkh kkk kku kub kuh kuk kuu ua- uaa uab uah uak uau uba ubb ubh ubk ubu uha uhb uhh uhu uka ukb ukk uku uua uuu