a-a a-b aaa aab aak aam aao aar aaw ab- aba abb abk abm abo abr abw aka akb akk akm ako akr akw ama amb amk amm amo amr amw aoa aob aok aom aoo aor aow ar- ara arb ark arm aro arr arw aw- awa awb awk awm awo awr aww baa bab bak bam bao bar baw bba bbb bbk bbm bbo bbr bbw bka bkb bkk bkm bko bkr bkw bma bmb bmk bmm bmo bmr bmw boa bob bok bom boo bor bow bra brb brk brm bro brr brw bwa bwb bwk bwo bwr ka- kaa kab kak kam kao kar kaw kba kbb kbk kbm kbo kbr kbw kkb kkk kkm kkr kma kmb kmk kmm kmo kmw koa kob kok kom koo kor kow kra krk kro krr krw kw- kwa kwk kwm kwo kww m-o m-r m-w maa mab mak mam mao mar maw mba mbb mbk mbm mbo mbr mbw mka mkb mkk mkm mko mkr mma mmb mmk mmm mmo mmr mmw moa mob mok mom moo mor mow mra mrb mrk mrm mro mrr mrw mwa mwb mwk mwm mwo mwr mww oaa oab oak oam oao oar oaw ob- oba obb obk obm obo obr obw oka okb okk oko okr okw om- oma omb omm omo omr omw oo- ooa oob ook oom ooo oor oow or- ora orb ork orm oro orr owa owb owk owm owo oww ra- raa rab rak ram rao rar raw rba rbb rbk rbm rbo rbr rbw rkb rkk rkm rko rma rmb rmm rmo rmr roa rob rok rom roo ror row rra rrb rrk rrm rrr rwa rwb rwm rwr waa wab wak wam wao war waw wba wbb wbo wbr wbw wka wkb wkm wko wkr wkw wm- wma wmb wmk wmm wmo wmr woa wob wok wom woo wor wow wr- wra wrk wrm wro wrr wrw wwa wwm wwo www