b-u bbb bbd bbk bbn bbr bbs bbu bdb bdd bdk bdr bds bdu bkb bkk bkn bkr bks bnb bnd bnk bnn bnr bns bnu brb brd brk brn brr brs bru bsb bsd bsk bsn bsr bss bsu bub bud buk bun bur bus buu dbb dbd dbk dbn dbr dbs dbu ddb ddd ddk ddn ddr dds ddu dkb dkk dkr dks dku dnb dnd dnk dnn dnr dns drb drd drk drn drr drs dru dsb dsd dsk dsn dsr dss dsu dub dud duk dun dur dus kbb kbd kbk kbn kbr kbs kbu kdb kdk kdr kds kdu kkb kkk kkn kkr kks kku kn- knd knk knn knr knu krd krk krn krr krs kru ksb ksd ksk ksn ksr kss ksu kub kud kuk kun kur kus kuu nbb nbd nbk nbn nbr nbs nbu ndb ndd ndk ndn ndr nds ndu nkk nkn nkr nks nku nnb nnk nnn nns nnu nrb nrd nrk nrn nrr nrs nru nsb nsd nsk nsn nsr nss nsu nub nud nuk nun nur nus nuu rbb rbd rbk rbn rbr rbs rbu rdb rdd rdn rdr rds rdu rkb rkk rks rku rnb rnd rnn rnr rns rnu rrb rrd rrk rrn rrr rrs rru rsb rsd rsk rsn rsr rss rsu rub rud ruk run rur rus ruu sbb sbd sbk sbn sbr sbs sbu sdb sdd sdk sdn sdr sds sdu sk- skb skd skk skr sks sku snb snd snk snn snr sns snu sr- srb srd srk srn srr srs ss- ssb ssd ssk ssn ssr sss ssu sub sud suk sun sur sus suu ubb ubk ubn ubr ubs ubu udb udd udk udn udr uds udu ukb ukk ukn ukr uku un- unb und unk unn unr uns unu ur- urb urd urk urn urr urs uru usb usd usk usn usr uss usu uun uur uus uuu

bbbb bbbs bbdd bd-r bdsd bnrr bnss brds brkb brns brrr brrs brsb brsr brud brun brus bsbd bsnd bsns bsrd bssd bubb bubs bubu budb budd buds budu bukk buku bunb bund bunk bunn buns bunu bur- burb burd burk burn burr burs buru busk buss busu buus dbrn dbrs dbss dbus dddd ddss ddub dnuk dnus drrs drub druk drus druu dsdr dsrr dssn dub- dubb dubs dubu dudd duds dudu duku dunk dunn duns durk durn duru dusk duur kbbb kbbd kbbk kbbr kbbs kbbu kbdb kbdn kbdr kbds kbkb kbkk kbkr kbnd kbnn kbnr kbnu kbrb kbrd kbrk kbrn kbru kbsb kbsk kbsn kbsr kbss kbsu kbub kbud kbuk kbun kbur kbus kbuu kdbb kdbn kdbr kdbs kddb kddd kddk kddr kdkb kdkd kdkk kdkn kdkr kdnd kdnk kdnn kdnr kdns kdrb kdrs kdsd kdsk kdsn kdsr kdss kdsu kdub kdun kdur kdus kkbb kkbd kkbn kkbr kkbs kkdd kkkk kknb kknd kknn kkns kknu kkrb kkrk kkrn kkrr kkrs kksd kksn kksr kkss kksu kkus kkuu knbb knbn knbr knbu kndb kndd kndk kndn kndr kndu knkk knnb knnd knnk knnr knns knrb knrk knrs knsb knsd knsk knsn knsr knss knsu knub knud knuk knur knus krbb krbd krbk krbr krdd krdr krds krdu krkd krkk krkn krkr krks krku krnb krnd krnk krnn krnu krrb krrk krrn krrr krrs krsd krsk krsn krsr krss krsu kruk krun krur ksbn ksbr ksbs ksdk ksdn ksdr ksds kskb kskd kskk kskn kskr ksks ksku ksnb ksnd ksnk ksnn ksnr ksns ksrb ksrn ksrr ksrs kssn kssr ksss kssu ksub ksud ksun ksuu kubb kubd kubr kubs kubu kudd kudu kukk kukn kuks kuku kund kunk kunr kuns kunu kurb kurd kurk kurr kurs kuru kusb kusd kusn kusu kuub kuuk kuur kuuu nddb ndss nndb nnnn nnss nrds nrrd nsds nskk nsnr nsrd nssb nssr nsss nsub nubk nubs nudd nuku nunk nunn nuns nurd nurn nurr nurs nuru nuss nusu nuuk rbbb rbbr rbbs rbds rbsd rbss rkss rnbr rnds rrrr rrun rsdd rsds rsnn rsnr rubb rubs rubu rudd ruds rukk rukn ruku rund runk runn runs rurd rurs ruru rusk russ rusu ruud ruun sbbs sbds sbrk sbsd sbus sdds sdrs sdss sdsu skn- sksd skss skud skun skur snns snrk snrs snsd snub snur snus srnn srsd srub ssbn ssbr ssdd ssns ssrs sssb ssss sub- subb subd subs sudd suds suks suku sun- sunb sund sunk sunn suns sunu sur- surd surn surr surs suru sus- susd susk suss susu suus ubud udds udsd uduk udun ukur unbd unds unkn unks unns unrs uns- unus urbs urds urdu urns urss ursu uruk urun urur urus us-k usbr usbs usds usnr usnu ussb ussr usss ussu usun usus uuuu

b-r-k bbuss bdubs brrrr brud- bruds brunk brunn bruns brusk bruss bruun budds buddu budur bukk- buknu bunds bundu bunks bunud bunuk bunun bunus burbs burds burks burn- burns burrs burru burud buruk burun burus busks bussu busur busuu d-bus ddddd ddruk drubs drunk druns du-ku dubbs dubus duduk dukku dukun dunks dunun dusks dusun k-b-d kdsbk knubs knurr knurs krunk kruun kudur kudus kuksu kukur kund- kundu kunku kunsu kunur kurbu kurds kurku kursk kurud kuruk kurus kusur kuusk n-sub nduru nkubu nssnd nu-nu nubus nudur nudus nukus nunks nunns nunun nurds nursu nuruk nurun nurus nusku nusus rubus rudds rudkk rudus rukus rundu rusks s-bus sbuks skruk skuds skunk skurn skurr skuru snbrn sndub snub- snubs snuss ssdrs sssrb sssss subbu subss subud subuk sudds sudku sudur sukru sukuk sukun sukur sunbs sundu sunud surds surdu sursk surud suruk surur surus susuk susun susus suudu suuns u-dub ukssd unbud undub undun undur unkur unnun unnur unrun unsu unsub unsun unurn urduk urkun ursuk ursus urubu us-ks ussun uuuuu

bbbbbb brubru bubkus bububu budruk budrus bukkur bukuru bukusu bundus burbur burdur burnuk buruku busbud dbndns drunks drusus dubdub duduks dukuns dukurs dundun dundur durrus dursun durusu duskur kubus kudrun kuduru kuknur kukurd kundru kundun kundur kunkur kunkus kunnur kurkun kurund kururu kuskus nnundu nukkuu nukunu nurnus nusnus rudnun rudrur rudusk rukkus