-ous bbbb bbbs bbdd bbdo bdos bdsd bobb bobo bobs bobu bodb bodo bods bodu boko boks boku boob bood book boos booz bosk boso boss bosu boud bouk bous bozo bsbd bsod bsos bssd bubb bubo bubs bubu budb budd budo buds budu bukk buko buku busk buss busu buus buuz buzz bzou bzzz d-bo dbos dbss dbus dddd ddss ddub dobb dobs dobu dod- dodd dodo dods doko doob dood dook doos dosk doso doss doub doud douk dous douz dozo dsos dub- dubb dubs dubu dudd dudo duds dudu duku duo- duos dusk duzs dzbb dzbs dzok dzos dzso dzud dzus k-os kbbb kbbd kbbk kbbo kbbs kbbu kbbz kbdb kbdo kbds kbdz kbkb kbkk kbko kbkz kbob kbod kbok kboo kbos kboz kbsb kbsk kbso kbss kbsu kbsz kbub kbud kbuk kbus kbuu kbuz kbzd kbzo kbzs kbzu kbzz kdbb kdbs kddb kddd kddk kdkb kdkd kdkk kdko kdok kdsd kdsk kdss kdsu kdub kdus kduz kdzz kkbb kkbd kkbo kkbs kkbz kkdd kkdo kkdz kkkk kkob kkoo kkoz kksd kkss kksu kkus kkuu kkzu kkzz kobb kobk kobo kobs kobu kodk kodo kods kodu kodz kokb kokk koko koks koku kokz koob kook kooo koos koou kooz kos- kosb kosd koso koss kosu kosz koub kous kouu kozb kozk kozo kozu ksbs ksbz ksdk ksds ksdz kskb kskd kskk ksko ksks ksku kskz ksob ksok ksoo ksos ksou ksso ksss kssu kssz ksub ksud ksuu kubb kubd kubo kubs kubu kudd kudo kudu kukk kuks kuku kuok kuoo kuos kusb kusd kuso kusu kuub kuuk kuuu kuuz kuzu kuzz kzbb kzbd kzbk kzbs kzbz kzks kzkz kzoo kzoz kzsb kzsd kzsu kzus kzuu kzuz kzzb kzzd kzzk kzzo kzzs kzzz obbo obkb obok obos obsd obss obus odbo oddd odds odoo odos odou odso odus okko okok okso okus ooku oooo ooos oous osku osoo osos ossb ossd osso ossu oubs ouds ousd ouu- ouzo ozd s-os sbbs sbds sbsd sbus sdds sdss sdsu sksd skss skud sobo sobs sobu sodd sodo sods sodu sokk soko soku sood sook soos soso soss soud souk sous soz- ssdd sssb ssss sub- subb subd subo subs subz sudd sudo suds suks suku suos sus- susd susk suso suss susu susz suus suzo suzu suzz szob szod szss ubbo ubod ubos ubud udds udoo udos udsd uduk ukko ukok us-k usbs usdo usds usos ussb usss ussu usus uuuu uzos zbus zobo zodd zoku zoo- zook zoos zoso zoss zouk zozo zozu zsss zubo zubu zuds zuko zuoz zuuk zuzu zzzs zzzz