b-u bbb bbd bbh bbk bbo bbr bbs bbu bdb bdd bdh bdk bdo bdr bds bdu bhb bhd bhh bhk bho bhr bhs bhu bkb bkk bko bkr bks bob bod boh bok boo bor bos bou brb brd brh brk bro brr brs bru bsb bsd bsh bsk bso bsr bss bsu bub bud buh buk buo bur bus buu dbb dbd dbh dbk dbo dbr dbs dbu ddb ddd ddh ddk ddo ddr dds ddu dh- dhb dhd dhh dhk dho dhr dhs dhu dkb dkk dko dkr dks dku dob dod doh dok doo dor dos dou drb drd drk dro drr drs dru dsb dsd dsh dsk dso dsr dss dsu dub dud duh duk duo dur dus hbb hbd hbh hbk hbo hbr hbs hbu hdb hdd hdh hdk hdo hdr hds hdu hhb hhd hhh hhk hho hhr hhs hhu hkb hkd hkh hkk hko hkr hks hku hob hod hoh hok hoo hor hos hou hr- hrb hrd hrh hrk hro hrr hrs hru hsb hsd hsh hsk hsr hss hsu hub hud huh huk huo hur hus huu kbb kbd kbh kbk kbo kbr kbs kbu kdb kdh kdk kdo kdr kds kdu khh khk kho khr khs khu kkb kkh kkk kkr kks kku kob kod koh kok koo kor kos kou krd krk kro krr krs kru ksb ksd ksh ksk kso ksr kss ksu kub kud kuh kuk kur kus kuu ob- obb obd obh obk obo obr obs obu odb odd odh odo odr ods odu ohd ohh oho ohr ohs ohu okb okd okk oko okr oks oku oo- oob ood ooh ook ooo oor oos or- orb ord orh ork oro orr ors oru os- osb osd osh osk oso osr oss osu ou- oud ouh ouk ouo our ous rbb rbd rbh rbk rbo rbr rbs rbu rdb rdd rdh rdo rdr rds rdu rh- rhb rhd rhh rho rhr rhs rhu rkb rkk rko rks rku rob rod roh rok roo ror ros rou rrb rrd rrh rrk rrr rrs rru rsb rsd rsh rsk rso rsr rss rsu rub rud ruh ruk ruo rur rus ruu sbb sbd sbh sbk sbo sbr sbs sbu sdb sdd sdh sdk sdo sdr sds sdu sh- shb shd shh shk sho shr shs shu sk- skb skd skh skk sko skr sks sku sob sod soh sok soo sor sos sou sr- srb srd srh srk sro srr srs ss- ssb ssd ssh ssk sso ssr sss ssu sub sud suh suk suo sur sus suu ubb ubh ubk ubo ubr ubs ubu udb udd udk udo udr uds udu uhb uhd uhh uho uhr uhs uhu ukb ukk ukr uku uob uod uok uoo uor uos ur- urb urd urk uro urr urs uru usb usd ush usk uso usr uss usu uur uus uuu

-hou -ous bbbb bbbs bbdd bbdo bbhs bd-r bddh bdhs bdos bdsd bhhs bhor bhur bhuu bkhs bobb bobo bobs bobu bodb bodh bodo bods bodu bohd boho bohr bohs bohu boko boks boku boob bood booh book boor boos bor- bord borh bork boro borr bors boru bosh bosk boso boss bosu boud bouh bouk bour bous brdo brds brhs brkb brob brod broh brok broo bror bros brou brrr brrs brsb brsr brud bruh brus bsbd bshs bsod bsos bsrd bssd bubb bubo bubs bubu budb budd budo buds budu buho buhr buhs bukh bukk buko buku bur- burb burd burh burk buro burr burs buru bush busk buss busu buus d-bo dbhs dbos dbrs dbss dbus dddd ddss ddub dhod dhor dhur dksh dobb dobs dobu dod- dodd dodo dods dohr dohs doko doob dood dook door doos dord dork doro dorr dors doru dosh dosk doso doss doub doud douk dour dous drhs drob drod droh drou drrs drub druk drus druu dsdr dshk dshs dsos dsrr dub- dubb dubh dubs dubu dudd dudo duds dudu duhr duhs duhu duku duo- duos durk duro duru dush dusk duur hbbs hbds hbhs hbos hbrs hbss hdbk hdhs hdod hdos hdss hhds hhhh hhhs hhus hkbu hobo hobs hodh hodk hodr hods hoho hoko hoks hoku hood hook hoor hoos hord hork horo horr hors hosh hoss houd houk hour hrhs hrob hrod hros hrso hrud hshs hsob hsur hubb hubo hubs hudd hudo huds hudu huhs huhu huor huos hurd hurk huro hurr hurs huru hush husk huso huss huub huus k-os kbbb kbbd kbbk kbbo kbbr kbbs kbbu kbdb kbdo kbdr kbds kbhb kbhh kbhr kbhs kbkb kbkk kbko kbkr kbob kbod kbok kboo kbos kbrb kbrd kbrh kbrk kbro kbru kbsb kbsk kbso kbsr kbss kbsu kbub kbud kbuk kbur kbus kbuu kdbb kdbr kdbs kddb kddd kddk kddr kdkb kdkd kdkk kdko kdkr kdok kdrb kdro kdrs kdsd kdsk kdsr kdss kdsu kdub kdur kdus khbd khbr khbs khdk khdr khhk khho khhs khkk khkr khks khob khok khor khou khrd khrk khro khrr khss khsu khub khud khuk khur khus kkbb kkbd kkbo kkbr kkbs kkdd kkdo kkhb kkhh kkhk kkhr kkkk kkob kkoh kkoo kkor kkrb kkrh kkrk kkro kkrr kkrs kksd kksr kkss kksu kkus kkuu kobb kobk kobo kobr kobs kobu kodk kodo kods kodu kohd kohh koho kohr kohs kohu kokb kokh kokk koko kokr koks koku koob kook kooo koor koos koou korb kord kork koro korr kors koru kos- kosb kosd kosh koso kosr koss kosu koub kour kous kouu krbb krbd krbk krbr krdd krdo krdr krds krdu krhs krkd krkh krkk krko krkr krks krku krob krod kroh krok kroo kror kros krrb krrk krro krrr krrs krsd krsh krsk krsr krss krsu kruh kruk krur ksbh ksbr ksbs ksdk ksdr ksds kshb kshd kshk ksho kshr kshs kshu kskb kskd kskk ksko kskr ksks ksku ksob ksok ksoo ksor ksos ksou ksrb ksrh ksro ksrr ksrs ksso kssr ksss kssu ksub ksud ksuh ksuu kubb kubd kubo kubr kubs kubu kudd kudo kudu