-th a-a a-b a-c a-t aaa aab aac aah aat aaw aay ab- aba abb abc abh abt abw aby ac- aca acb acc ach act acw acy aha ahb ahc ahh aht ahw ahy at- ata atb atc ath att atw aw- awa awb awc awh awt aww awy ay- aya ayc ayh ayt ayw baa bab bac bah bat baw bay bba bbb bbc bbh bbt bbw bby bca bcb bcc bch bct bcy bha bhb bhc bhh bht bhw bta btb btc bth btt btw bty bwa bwb bwc bwh bwy by- bya byc byh byt c-- caa cab cac cah cat caw cay cba cbb cbc cbh cbt cbw cby cca ccb ccc cch cct ccw ch- cha chb chc chh cht chw chy cta ctb ctc cth ctt ctw cty cw- cwa cwb cwc cwh cwt cya cyb cyc cyt cyw haa hab hac hah hat haw hay hba hbb hbc hbh hbt hbw hby hca hcb hcc hch hct hcw hcy hha hhb hhc hhh hht hhw hhy hta htb htc hth htt htw hty hw- hwa hwb hwt hww hwy hy- hya hyb hyc hyh hyt hyw hyy taa tab tac tah tat taw tay tba tbb tbc tbh tbt tca tcb tcc tch tct tcw th- tha thb thc thh tht thw thy tta ttb ttc tth ttt ttw tty twa twb twc twh twt tww twy tya tyc tyt waa wab wac wah wat waw way wba wbb wbc wbt wbw wca wcb wcc wch wct wcw wh- wha whb whc whh wht whw why wta wtb wtc wth wtt wtw wwa wwc wwt www wy- wya wyc wyt yaa yab yac yah yat yaw yay ybc yby yca ycc ych ycw ycy yha yhc yht yhw yta ytc yth ytt ywc yyb yyc yyt yyy