a-a a-b aaa aab aah aas aaw ab- aba abb abh abs abw aha ahb ahh ahs ahw as- asa asb ash ass asw aw- awa awb awh aws aww baa bab bah bas baw bba bbb bbh bbs bbw bha bhb bhh bhs bhw bsa bsb bsh bss bsw bwa bwb bwh bws haa hab hah has haw hba hbb hbh hbs hbw hha hhb hhh hhs hhw hsa hsb hsh hss hsw hw- hwa hwb hws hww saa sab sah sas saw sba sbb sbh sbs sbw sh- sha shb shh shs ss- ssa ssb ssh sss ssw swa swb swh sws waa wab wah was waw wba wbb wbs wbw wh- wha whb whh whs whw wsa wsb wsh wss wsw wwa www