a-a a-b aaa aab aad aak aan aao aaw ab- aba abb abd abk abn abo abw ad- ada adb add adk adn ado adw aka akb akd akk akn ako akw an- ana anb and ank ann ano aoa aob aod aok aon aoo aow aw- awa awb awd awk awn awo aww baa bab bad bak ban bao baw bba bbb bbd bbk bbn bbo bbw bda bdb bdd bdk bdo bdw bka bkb bkk bkn bko bkw bna bnb bnd bnk bnn bno bnw boa bob bod bok bon boo bow bwa bwb bwd bwk bwo daa dab dad dak dan dao daw dba dbb dbd dbk dbn dbo dda ddb ddd ddk ddn ddo ddw dka dkb dkk dko dkw dna dnb dnd dnk dnn dno dnw doa dob dod dok don doo dow dwa dwb dwn dwo dww ka- kaa kab kad kak kan kao kaw kba kbb kbd kbk kbn kbo kbw kda kdb kdk kdo kkb kkk kkn kn- kna knd knk knn kno koa kob kod kok kon koo kow kw- kwa kwd kwk kwo kww naa nab nad nak nan nao naw nba nbb nbd nbk nbn nbo nbw nda ndb ndd ndk ndn ndo nka nkk nkn nko nna nnb nnk nnn nno nnw no- noa nob nod nok non noo now nwa nwb nwd nwn nwo oaa oab oad oak oan oao oaw ob- oba obb obd obk obn obo obw oda odb odd odn odo oka okb okd okk oko okw on- ona onb ond onk onn ono oo- ooa oob ood ook oon ooo oow owa owb owd owk own owo oww waa wab wad wak wan wao waw wba wbb wbd wbn wbo wbw wda wdb wka wkb wkd wko wkw wn- wna wnd wnn wno wnw woa wob wod wok won woo wow wwa wwd wwn wwo www