b-u bbb bbd bbk bbo bbs bbt bbu bdb bdd bdk bdo bds bdt bdu bkb bkk bko bks bkt bob bod bok boo bos bot bou bsb bsd bsk bso bss bst bsu btb btd btk bto bts btt btu bub bud buk buo bus but buu dbb dbd dbk dbo dbs dbt dbu ddb ddd ddk ddo dds ddt ddu dkb dkk dko dks dkt dku dob dod dok doo dos dot dou dsb dsd dsk dso dss dst dsu dtb dtd dtk dto dts dtt dtu dub dud duk duo dus dut k-t kbb kbd kbk kbo kbs kbu kdb kdk kdo kds kdt kdu kkb kkk kks kkt kku kob kod kok koo kos kot kou ksb ksd ksk kso kss kst ksu ktb ktk kto kts ktt ktu kub kud kuk kus kut kuu ob- obb obd obk obo obs obt obu odb odd odo ods odt odu okb okd okk oko oks oku oo- oob ood ook ooo oos oot os- osb osd osk oso oss ost osu ot- otb otd otk oto ots ott otu ou- oud ouk ouo ous out sbb sbd sbk sbo sbs sbt sbu sdb sdd sdk sdo sds sdt sdu sk- skb skd skk sko sks skt sku sob sod sok soo sos sot sou ss- ssb ssd ssk sso sss sst ssu stb std stk sto sts stt stu sub sud suk suo sus sut suu tbb tbd tbk tbo tbs tbt tbu tdb tdd tdk tdo tds tdt tdu tkb tkk tko tks tkt to- tob tod tok too tos tot tou tsb tsd tsk tso tss tst tsu ttb ttd ttk tto tts ttt ttu tub tud tuk tuo tus tut tuu ubb ubk ubo ubs ubt ubu udb udd udk udo uds udt udu ukb ukk uku uob uod uok uoo uos uot usb usd usk uso uss ust usu utb utd utk uto uts utt utu uus uut uuu

-ous bbbb bbbs bbdd bbdo bdos bdsd bobb bobo bobs bobu bodb bodo bods bodu boko boks boku boob bood book boos boot bosk boso boss bost bosu botb botd boto bots bott boud bouk bous bout bsbd bskt bsod bsos bssd bsts btdt btob btss bttb btus bubb bubo bubs bubu budb budd budo buds budu bukk buko buku busk buss bust busu but- buto buts butt buus d-bo dbos dbss dbtt dbus dddd ddot ddss ddts ddub dobb dobs dobu dod- dodd dodo dods doko doob dood dook doos doot dosk doso doss dost dotd dotk doto dots dott doub doud douk dous dout dsos dsst dsto dsts dtot dtss dub- dubb dubs dubu dudd dudo duds dudu dukt duku duo- duos dusk dust duts duut k-os kbbb kbbd kbbk kbbo kbbs kbbt kbbu kbdb kbdo kbds kbkb kbkk kbko kbob kbod kbok kboo kbos kbot kbsb kbsk kbso kbss kbst kbsu kbtb kbtk kbto kbts kbtt kbub kbud kbuk kbus kbut kbuu kdbb kdbs kddb kddd kddk kdkb kdkd kdkk kdko kdkt kdok kdot kdsd kdsk kdss kdst kdsu kdtd kdub kdus kdut kkbb kkbd kkbo kkbs kkbt kkdd kkdo kkdt kkkk kkob kkoo kkot kksd kkss kkst kksu kktk kkts kktu kkus kkut kkuu kobb kobk kobo kobs kobu kodk kodo kods kodt kodu kokb kokk koko koks koku koob kook kooo koos koot koou kos- kosb kosd koso koss kost kosu kotb kotd kotk koto kots kott kotu koub kous kout kouu ksbs ksdk ksds kskb kskd kskk ksko ksks ksku ksob ksok ksoo ksos ksou ksso ksss ksst kssu kstb kstk ksto ksts kstt kstu ksub ksud ksut ksuu ktbb ktbt ktbu ktdb ktdd ktdk ktdo ktkb ktkk ktko ktks ktkt ktku ktob ktok ktoo ktot ktsd ktso ktst ktsu kttk ktto ktts kttt kttu ktub kubb kubd kubo kubs kubu kudd kudo kudu kukk kuks kuku kuok kuoo kuos kusb kusd kuso kust kusu kuto kuts kutt kutu kuub kuuk kuuu obbo obdt obkb obok obos obot obsd obss obst obtd obts obus odbo oddd odds odoo odos odot odou odso odts odtu odus okko okok okot okso okto okus ooku oooo ooos oost ootb oots oous osku osoo osos ossb ossd osso ossu osts otbd otbs oto- otok otoo otos otso otsu otto otts ottu otus oubs ouds ousd oust out- outb outo outs ouu- s-os sbbs sbds sbot sbsd sbst sbtk sbus sdds sdot sdss sdsu skot sksd skss skud skut sobo sobs sobt sobu sodd sodo sods sodu sokk soko soku sood sook soos soot soso soss sost sotk soto sots sotu soud souk sous sout ssdd ssot sssb ssss sstb sstd ssts stbd stbs stds stks stob stod stok stoo stos stot stou stss sttd stub stud stuk stus stut sub- subb subd subo subs sudd sudo suds suks suku suos sus- susd susk suso suss sust susu suto sutu suus tbbs tbst tddb tdss tkod tkos tkts tobo tobs tobt tobu todd todo tods todt todu toko toku tood took toos toot tosb tosk toso toss tost tosu totd toto tots tott touk tous tout tsbd tsdb tsks tsob tsos tsou tsst tsts ttbb ttss tttt tubb tubo tubs tubu tudu tuko tuks tuos tusd tusk tuss tust tuto tuts tutt tutu tuuo ubbo ubod ubos ubud udds udoo udos udot udsd udts uduk ukko ukok us-k usbs usdo usds usdt usos ussb usss usst ussu ustb usto usts usus utto uttu uuuu

bbook bbuss bdubs bo-bo bobko bobok bobos bobst bobts bodd- bodos bokko bokod bokok boobs booko books boost boots bosko bosks bossk bosso bosut botok botos botou botts bottu botus boudu bouko bouks boust bouto bouts bskts bsous btstu budds buddu budko budos bukk- busks busot busso bussu busto busts busut busuu butdo butko buto- butot butou butts butuo butut d-bus d-dot dbdos dbtss ddddd ddost do-do dobbs dobok dobos dodds dodoo dodos dokdo dokos dokuo doobs doodo doods dooks dooku doost doout dosso dot-s dotoo dotto doubs doubt douds doust douts du-ku dubbo dubbs dubos dubus duddo dudok