a-a a-b aaa aab aah aau aaw aax ab- aba abb abh abu abw abx aha ahb ahh ahu ahw ahx au- aua aub auh auw aux aw- awa awb awh awu aww ax- axa axh axx b-u baa bab bah bau baw bax bba bbb bbh bbu bbw bbx bha bhb bhh bhu bhw bhx bua bub buh buu buw bux bwa bwb bwh bwu bxb bxw bxx haa hab hah hau haw hax hba hbb hbh hbu hbw hbx hha hhb hhh hhu hhw hua hub huh huu huw hux hw- hwa hwb hwu hww ua- uaa uab uah uau uaw uba ubb ubh ubu ubw ubx uha uhb uhh uhu uhw uua uuu uwa uwb uww uxb uxu waa wab wah wau waw wax wba wbb wbw wbx wh- wha whb whh whu whw wua wub wwa wwu www wxw xaa xau xbx xwa xxx