a-a a-b aaa aab aah aak aaw ab- aba abb abh abk abw aha ahb ahh ahk ahw aka akb akh akk akw aw- awa awb awh awk aww baa bab bah bak baw bba bbb bbh bbk bbw bha bhb bhh bhk bhw bka bkb bkk bkw bwa bwb bwh bwk haa hab hah hak haw hba hbb hbh hbk hbw hha hhb hhh hhk hhw hka hkb hkh hkk hkw hw- hwa hwb hwk hww ka- kaa kab kah kak kaw kba kbb kbh kbk kbw kha khh khk kkb kkh kkk kw- kwa kwh kwk kww waa wab wah wak waw wba wbb wbw wh- wha whb whh whk whw wka wkb wkw wwa www