a-a a-b aaa aab aad aak aao aaw aay ab- aba abb abd abk abo abw aby ad- ada adb add adk ado adw ady aka akb akd akk ako akw aoa aob aod aok aoo aow aw- awa awb awd awk awo aww awy ay- aya ayd ayk ayo ayw baa bab bad bak bao baw bay bba bbb bbd bbk bbo bbw bby bda bdb bdd bdk bdo bdw bdy bka bkb bkk bko bkw boa bob bod bok boo bow boy bwa bwb bwd bwk bwo bwy by- bya byd byk byo daa dab dad dak dao daw day dba dbb dbd dbk dbo dby dda ddb ddd ddk ddo ddw ddy dka dkb dkk dko dkw doa dob dod dok doo dow doy dwa dwb dwo dww dy- dya dyb dyd dyk dyo dyw dyy ka- kaa kab kad kak kao kaw kay kba kbb kbd kbk kbo kbw kda kdb kdk kdo kdy kkb kkk kky koa kob kod kok koo kow koy kw- kwa kwd kwk kwo kww kya kyd kyo kyw oaa oab oad oak oao oaw ob- oba obb obd obk obo obw oby oda odb odd odo oka okb okd okk oko okw oo- ooa oob ood ook ooo oow owa owb owd owk owo oww oya oyd oyo waa wab wad wak wao waw way wba wbb wbd wbo wbw wda wdb wdy wka wkb wkd wko wkw wky woa wob wod wok woo wow woy wwa wwd wwo www wy- wya wyd wyk wyo yaa yab yad yak yao yaw yay yby yda ydo ydy yka ykk yob yod yok yoo yow yoy yyb yyy