b-u bbb bbd bbi bbr bbs bbt bbu bby bdb bdd bdi bdr bds bdt bdu bdy bi- bib bid bii bir bis bit biu biy brb brd bri brr brs brt bru bry bsb bsd bsi bsr bss bst bsu bsy btb btd bti btr bts btt btu bty bub bud bui bur bus but buu buy by- byd byi byr bys byt byu dbb dbd dbi dbr dbs dbt dbu dby ddb ddd ddi ddr dds ddt ddu ddy di- dib did dii dir dis dit diu diy drb drd dri drr drs drt dru dry dsb dsd dsi dsr dss dst dsu dsy dtb dtd dti dtr dts dtt dtu dty dub dud dui dur dus dut duy dy- dyb dyd dyr dys dyu dyy i-d ibb ibd ibi ibr ibs ibt ibu iby idb idd idi idr ids idt idu idy iib iid iii iir iis iit iiu ir- irb ird iri irr irs irt iru iry is- isb isd isi isr iss ist isu isy itb itd iti its itt itu ity iu- iub iud iui iur ius iut iyr iys iyt iyy rbb rbd rbi rbr rbs rbt rbu rdb rdd rdi rdr rds rdt rdu rdy rib rid rii rir ris rit riy rrb rrd rri rrr rrs rrt rru rsb rsd rsi rsr rss rst rsu rtb rtd rti rtr rts rtt rtu rty rub rud rui rur rus rut ruu ruy ry- ryd ryr rys ryu ryy sbb sbd sbi sbr sbs sbt sbu sby sdb sdd sdi sdr sds sdt sdu sdy sib sid sii sir sis sit siu sr- srb srd sri srr srs srt sry ss- ssb ssd ssi ssr sss sst ssu stb std sti str sts stt stu sty sub sud sui sur sus sut suu suy sy- syb syd syi syr sys syt syu tbb tbd tbi tbr tbs tbt tbu tdb tdd tdi tdr tds tdt tdu tdy tib tid tii tir tis tit tiu tiy trb trd tri trr trs trt tru try tsb tsd tsi tsr tss tst tsu tsy ttb ttd tti ttr tts ttt ttu tty tub tud tui tur tus tut tuu tuy tyd tyr tys tyt ubb ubi ubr ubs ubt ubu uby udb udd udi udr uds udt udu uib uid uii uir uis uit uiu ur- urb urd uri urr urs urt uru ury usb usd usi usr uss ust usu utb utd uti utr uts utt utu uty uur uus uut uuu uyi uys uyu ybi ybr ybs yby yds ydt ydy yid yii yir yis yit yrs yrt yru ysb ysi ysr yss yst ysu ysy ytd ytr yts ytt ytu yud yui yur yus yut yuu yuy yyb yys yyt yyu yyy

bbbb bbbs bbdd bd-r bdii bdry bdsd bibb bibi bibs bidi bidr bids bidu biis birb bird biri birr birs birt biru biry bis- bisd biss bist bisu bisy bitd bits bitt bitu biys brds brdt brdy brid bris brit brrr brrs brsb brsr brst brud brus brut bry- bryd bsbd bsrd bssd bsts btdt btrt btry btss bttb btus bubb bubi bubs bubu budb budd budi buds budu budy buid buir buis buit buiu bur- burb burd buri burr burs burt buru bury busi buss bust busu busy but- buti buts butt buty buus buyi buys buyu byit byrd byrt bysb bysi byss byst bysy byts byyd dbit dbrs dbss dbtt dbus dddd ddry ddss ddts ddub dibb dibs diby didi dids didu didy diii diis dird dirr dirs dirt dis- disd disi diss dist disy diti dits ditt dius diyi diyu drib drit drrs drub drui drus drut druu dry- drys dsdr dsri dsrr dssi dsst dsts dtss dub- dubb dubs dubu duby dudd duds dudu duid duir duis duit duri durt duru dury dusi dust dusy duts duty duur duut duyr dybt dybu dydd dyit dyr- dyrb dyri dyrt dyru dys- dysi dysr dyss dyst dyt- dyty dyur dyyr i-by ibid ibis ibrd ibri ibss ibtb ibts ibus ibuy ibyi idid idir idis idss idts idub idus iiii iiis iiit iirs iisd iisi iisr iist iisu iitr iitt irby irds iri- irid iris iriy irri irrs irti irts irus isbd isbt isdb isds isis isit isri issi issr isss issu issy istd isti istr ists isty isus isys itbs itby itis itri itrs itry itsi itsu itsy itty itur iuds iuiu iusd iuss iust iuty rbbb rbbr rbbs rbds rbis rbsd rbss rbst rib- ribs ribu riby ridd ridi rids riis riri rirs risd risi riss rist risu riti rits ritt ritu rius rrrr rsbi rsdd rsds rsid rsis rsts rstu rtdt rtss rtts rubb rubi rubs rubu ruby rudd rudi ruds rudy ruid ruis ruit rurd ruri rurs ruru rusi russ rust rusu rusy ruti ruts rutt rutu ruty ruud ruyd ruyi ruys rydy ryis rysy rytt ryyt s-ib s-ii sbbs sbds sbsd sbsi sbst sbus sdds sdib sdrs sdry sdss sdsu sibi sibs sibu siby sidd sidi sidr sids sidy siit siri sirr sirs sirt siru sisd sisi siss sist sisu sisy sit- sitd siti sits sitt situ sity siui sius siut siyi siyu srby srib sris srsd srtr srub ssbr ssby ssdd ssid ssis ssit ssri ssrs sssb sssi ssss sstb sstd ssts stbd stbs stds stib stid stir stis stit strd stri strs stru stry stsi stss sttd sttr stub stud stur stus stut stuy styd styr stys sub- subb subd subi subs sudd sudi suds suid suir suis suit sur- surd suri surr surs surt suru sury sus- susd susi suss sust susu susy suti sutu suty suus suyi suyr suyu sydi syds syis syrs syrt syry syss syst sytt tbbs tbit tbrb tbst tddb tdis tdri tdss tibi tibs tibu tidd tids tidy tiit tiiu tirb tird tiri tirr tirs tiru tiry tisb tisi tiss tist titi tits titt titu tiyi tri- trib tris trit trsd trsi trst trtr trub trud trus trut truu try- tryb trys tsbd tsdb tsid tsis tssi