b-u bbb bbi bbn bbr bbs bbt bbu bby bi- bib bii bin bir bis bit biu biy bnb bni bnn bnr bns bnt bnu brb bri brn brr brs brt bru bry bsb bsi bsn bsr bss bst bsu bsy btb bti btn btr bts btt btu bty bub bui bun bur bus but buu buy by- byi byn byr bys byt byu ibb ibi ibn ibr ibs ibt ibu iby iib iii iin iir iis iit iiu in- inb ini inn inr ins int inu iny ir- irb iri irn irr irs irt iru iry is- isb isi isn isr iss ist isu isy itb iti itn its itt itu ity iu- iub iui iur ius iut iyr iys iyt iyy n-i nbb nbi nbn nbr nbs nbt nbu nib nii nin nir nis nit niu nnb nni nnn nns nnt nnu nrb nri nrn nrr nrs nrt nru nry nsb nsi nsn nsr nss nst nsu nsy ntb nti ntn ntr nts ntt ntu nub nui nun nur nus nut nuu nuy nyn nys nyt nyu nyy rbb rbi rbn rbr rbs rbt rbu rib rii rin rir ris rit riy rnb rni rnn rnr rns rnt rnu rny rrb rri rrn rrr rrs rrt rru rsb rsi rsn rsr rss rst rsu rtb rti rtn rtr rts rtt rtu rty rub rui run rur rus rut ruu ruy ry- ryn ryr rys ryu ryy sbb sbi sbn sbr sbs sbt sbu sby sib sii sin sir sis sit siu snb sni snn snr sns snt snu sny sr- srb sri srn srr srs srt sry ss- ssb ssi ssn ssr sss sst ssu stb sti stn str sts stt stu sty sub sui sun sur sus sut suu suy sy- syb syi syn syr sys syt syu tbb tbi tbn tbr tbs tbt tbu tib tii tin tir tis tit tiu tiy tnb tni tnn tnr tns tnt trb tri trn trr trs trt tru try tsb tsi tsn tsr tss tst tsu tsy ttb tti ttn ttr tts ttt ttu tty tub tui tun tur tus tut tuu tuy tyn tyr tys tyt ubb ubi ubn ubr ubs ubt ubu uby uib uii uin uir uis uit uiu un- unb uni unn unr uns unt unu uny ur- urb uri urn urr urs urt uru ury usb usi usn usr uss ust usu utb uti utn utr uts utt utu uty uun uur uus uut uuu uyi uys uyu ybi ybr ybs yby yii yin yir yis yit ynn yns ynu yny yrn yrs yrt yru ysb ysi ysr yss yst ysu ysy ytn ytr yts ytt ytu yui yun yur yus yut yuu yuy yyb yys yyt yyu yyy

bbbb bbbs bbin bibb bibi bibs biin biis bin- bini binn bins bint binu biny birb biri birn birr birs birt biru biry bis- biss bist bisu bisy bits bitt bitu biys bnib bnin bnrr bnss brin bris brit brns brrr brrs brsb brsr brst brun brus brut bry- bryn bsin bsns bsts btrt btry btss bttb btus bubb bubi bubs bubu buin buir buis buit buiu bunb buni bunn buns bunt bunu bur- burb buri burn burr burs burt buru bury busi buss bust busu busy but- buti buts butt buty buus buyi buys buyu byit byrn byrt bysb bysi byss byst bysy byts byun i-by ibis ibns ibri ibsn ibss ibtb ibts ibus ibuy ibyi iiii iiis iiit iirs iisi iisr iist iisu iitr iitt inby inis init inni innr inns innu inny inri inrs inss inst insu inti intn intr ints intu inui inun inus irby iri- irin iris iriy irri irrs irti irts irun irus iryn isbn isbt isin isis isit isnt isri issi issr isss issu issy isti istr ists isty isus isys itbs itby itin itis itri itrs itry itsi itsu itsy itty itur iuiu iuss iust iuty n-ii nbti nbty nibi nibs niir niit niiu nini nins nirs nirt niru nisi niss nist nisu nitb niti nitr nits nity niur niyi nnit nnnn nnss nntn nrts nsin nsis nsnr nssb nssr nsss nsts nstu nsub ntis ntnu ntru ntsb ntss ntsu nttr ntui nubi nubs nuby nuin nuit nunn nuns nunt nuny nuri nurn nurr nurs nurt nuru nusi nuss nust nusu nusy nuts nutt nutu nuys nyit nynt nyny nyrb nyss nyst nytb rbbb rbbr rbbs rbis rbss rbst rib- ribs ribu riby riin riis rinn riny riri rirs risi riss rist risu riti rits ritt ritu rius rnbr rnin rnnt rnut rrrr rrun rsbi rsis rsnn rsnr rsts rstu rtns rtss rtts rubb rubi rubs rubu ruby ruin ruis ruit runi runn runs runt runy ruri rurs ruru rusi russ rust rusu rusy ruti ruts rutt rutu ruty ruun ruyi ruys ryis rynn rynt rysy rytt ryun ryyt s-ib s-ii sbbs sbsi sbst sbtn sbus sibi sibs sibu siby siit sini sinn sins sint sinu siny siri sirr sirs sirt siru sisi siss sist sisu sisy sit- siti sitn sits sitt situ sity siui sius siut siyi siyu snib snir snit snns snrs snsy sntr snub snur snus snys srby srib sris srni srnn srtr srub ssbn ssbr ssby ssin ssis ssit ssns ssri ssrs sssb sssi ssss sstb ssts stbs stib stir stis stit stnn stnr stns stri strn strs stru stry stsi stss sttr stub stun stur stus stut stuy styr stys sub- subb subi subs suin suir suis suit sun- sunb suni sunn suns sunt sunu suny sur- suri surn surr surs surt suru sury sus- susi suss sust susu susy suti sutu suty suus suyi suyn suyr suyu syis syn- syns synu syny syrs syrt syry syss syst sytt syun tbbs tbit tbrb tbst tibi tibs tibu tiit tiiu tini tinn tins tint tinu tiny tirb tiri tirr tirs tiru tiry tisb tisi tiss tist titi tits titt titu tiyi tiyn tnts tnut tri- trib trin tris trit trsi trst trtr trub trun trus trut truu try- tryb trys tsin tsis tssi