-th a-a a-b a-c a-t aaa aab aac aah aan aao aat aaw ab- aba abb abc abh abn abo abt abw ac- aca acb acc ach acn aco act acw aha ahb ahc ahh ahn aho aht ahw an- ana anb anc anh ann ano ant aoa aob aoc aoh aon aoo aot aow at- ata atb atc ath atn ato att atw aw- awa awb awc awh awn awo awt aww baa bab bac bah ban bao bat baw bba bbb bbc bbh bbn bbo bbt bbw bca bcb bcc bch bcn bco bct bha bhb bhc bhh bho bht bhw bna bnb bnc bnn bno bnt bnw boa bob boc boh bon boo bot bow bta btb btc bth btn bto btt btw bwa bwb bwc bwh bwo c-- caa cab cac cah can cao cat caw cba cbb cbc cbh cbn cbo cbt cbw cca ccb ccc cch ccn cco cct ccw ch- cha chb chc chh chn cho cht chw cn- cna cnb cnc cnh cnn cno cnt cnw co- coa cob coc coh con coo cot cow cta ctb ctc cth ctn cto ctt ctw cw- cwa cwb cwc cwh cwn cwo cwt haa hab hac hah han hao hat haw hba hbb hbc hbh hbn hbo hbt hbw hca hcb hcc hch hcn hco hct hcw hha hhb hhc hhh hhn hho hht hhw hna hnb hnc hnh hnn hno hnt hnw hoa hob hoc hoh hon hoo hot how hta htb htc hth htn hto htt htw hw- hwa hwb hwn hwo hwt hww naa nab nac nah nan nao nat naw nba nbb nbc nbn nbo nbt nbw nca ncb ncc nch ncn nco nct ncw nha nhb nhc nhh nhn nht nna nnb nnc nnh nnn nno nnt nnw no- noa nob noc noh non noo not now nta ntb ntc nth ntn nto ntt nwa nwb nwc nwn nwo nwt oaa oab oac oah oan oao oat oaw ob- oba obb obc obh obn obo obt obw oc- oca ocb occ och ocn oco oct ocw oha ohc ohh ohn oho oht on- ona onb onc onh onn ono ont oo- ooa oob ooc ooh oon ooo oot oow ot- ota otb otc oth otn oto ott otw owa owb owc owh own owo owt oww taa tab tac tah tan tao tat taw tba tbb tbc tbh tbn tbo tbt tca tcb tcc tch tcn tco tct tcw th- tha thb thc thh thn tho tht thw tna tnb tnc tnh tnn tno tnt tnw to- toa tob toc toh ton too tot tow tta ttb ttc tth ttn tto ttt ttw twa twb twc twh twn two twt tww waa wab wac wah wan wao wat waw wba wbb wbc wbn wbo wbt wbw wca wcb wcc wch wcn wco wct wcw wh- wha whb whc whh who wht whw wn- wna wnc wnn wno wnt wnw woa wob woc woh won woo wot wow wta wtb wtc wth wtn wto wtt wtw wwa wwc wwn wwo wwt www