b-u bbb bbf bbi bbo bbr bbs bbt bbu bby bfb bff bfi bfo bfr bfs bft bfu bfy bi- bib bif bii bio bir bis bit biu biy bob bof boi boo bor bos bot bou boy brb brf bri bro brr brs brt bru bry bsb bsf bsi bso bsr bss bst bsu bsy btb btf bti bto btr bts btt btu bty bub buf bui buo bur bus but buu buy by- byf byi byo byr bys byt byu fbb fbf fbi fbo fbr fbs fbt fbu fff ffi ffo ffr ffs fft ffu ffy fib fif fii fir fis fit fiu fob fof foi foo for fos fot fou foy frb frf fri fro frr frs frt fru fry fsb fsf fsi fso fsr fss fst fsu ftb ftf fti fto ftr fts ftt ftu fty fub fuf fui fuo fur fus fut fuu fy- fyb fyi fyo i-f ibb ibf ibi ibo ibr ibs ibt ibu iby ifb iff ifi ifo ifr ifs ift ifu ify iib iif iii iio iir iis iit iiu io- iob iof ioi ioo ior ios iot iou ir- irb irf iri iro irr irs irt iru iry is- isb isf isi iso isr iss ist isu isy itb itf iti ito its itt itu ity iu- iub iui iur ius iut iyo iyr iys iyt iyy o-i ob- obb obf obi obo obr obs obt obu oby of- ofb off ofi ofo ofr ofs oft ofu oib oif oii oio oir ois oit oiu oo- oob oof ooi ooo oor oos oot or- orb orf ori oro orr ors ort oru ory os- osb osf osi oso osr oss ost osu ot- otb otf oti oto otr ots ott otu ou- ouf oui ouo our ous out oyi oyo oys rbb rbf rbi rbo rbr rbs rbt rbu rfb rff rfi rfo rfr rfs rft rfu rib rif rii rio rir ris rit riy rob rof roi roo ror ros rot rou roy rrb rrf rri rrr rrs rrt rru rsb rsf rsi rso rsr rss rst rsu rtb rtf rti rto rtr rts rtt rtu rty rub ruf rui ruo rur rus rut ruu ruy ry- ryf ryo ryr rys ryu ryy sbb sbf sbi sbo sbr sbs sbt sbu sby sfb sff sfi sfo sfr sfs sft sfu sib sif sii sio sir sis sit siu sob sof soi soo sor sos sot sou soy sr- srb srf sri sro srr srs srt sry ss- ssb ssf ssi sso ssr sss sst ssu stb stf sti sto str sts stt stu sty sub suf sui suo sur sus sut suu suy sy- syb syi syr sys syt syu tbb tbf tbi tbo tbr tbs tbt tbu tfb tff tfi tfo tfr tfs tft tfu tib tif tii tio tir tis tit tiu tiy to- tob tof toi too tor tos tot tou toy trb trf tri tro trr trs trt tru try tsb tsf tsi tso tsr tss tst tsu tsy ttb ttf tti tto ttr tts ttt ttu tty tub tuf tui tuo tur tus tut tuu tuy tyf tyo tyr tys tyt ubb ubf ubi ubo ubr ubs ubt ubu uby uff ufi ufo ufr ufs uft ufu uib uif uii uio uir uis uit uiu uob uoo uor uos uot ur- urb urf uri uro urr urs urt uru ury usb usf usi uso usr uss ust usu utb utf uti uto utr uts utt utu uty uur uus uut uuu uyi uyo uys uyu ybf ybi ybr ybs yby yff yfr yfs yft yfu yif yii yio yir yis yit yob yof yoi yoo yor yos yot you yoy yrf yro yrs yrt yru ysb ysi yso ysr yss yst ysu ysy ytf yto ytr yts ytt ytu yui yuo yur yus yut yuu yuy yyb yyf yys yyt yyu yyy

-ous bbbb bbbs bboy bbyo bffs bfsi bfsr bfts bftt bibb bibi bibo bibs biff bifi biis bio- bioi bios biot biou birb biri biro birr birs birt biru biry bis- biso biss bist bisu bisy bito bits bitt bitu biys bobb bobi bobo bobs bobu boby boff bofs bofu boi- boii bois boit boiu boob boof boor boos boot bor- borf bori boro borr bors bort boru bory bosi boso boss bost bosu botb boti boto bots bott boty bouf bour bous bout bouy boyf boyi boyo boys brfu brio bris brit brob broo bror bros brot brou brrr brrs brsb brsr brst brus brut bry- bryo bsff bsfs bsos bsts btob btor btrt btry btss bttb btus bubb bubi bubo bubs bubu buff bufo bufr buif buir buis buit buiu buoy bur- burb buri buro burr burs burt buru bury busi buss bust busu busy but- buti buto buts butt buty buus buyi buyo buys buyu byit byob byoi byos byrt bysb bysi byso byss byst bysy byts fbis fbrs fbus ffff ffii ffrr ffss fftf fibs fiff fifi fifo fift fiii fior fios firs firy fisi fiss fist fisu fiti fits fitt fobs fobt fofo fois foof foos foot for- forb fori foro forr fors fort fosb fosi foso foss fost foti foto fots fott foty four fous fout foys foyt frib frio fris frit frob fros frot frou frsb frso frst frub frys fsfi fsfo fssf ftfy ftii ftos ftrs ftsr ftub fubb fubs fubu fuff fufu fuir fuit fuor fur- furi furo furr furs furt fury fusi fuso fuss fust fusu futi futo futs futu fuyt fuyu fyfi fyrs fyry fyti i-by ibfi ibis ibos ibot ibri ibro ibsf ibss ibtb ibts ibus ibuy ibyi ifbb ifby iffy ifis ifit ifor ifrb ifrf ifri ifsb ifso ifto ifyo iiii iiio iiis iiit iioi iioo iios iirs iisi iisr iist iisu iitr iitt iobi ioby ioii ioio ioit ioof iooi iooo ioos iori iors ioso iosu iotf ioto ious irby irfu iri- irio iris iriy irob irri irrs irsf irtf irti irts irus isbt isis isit iso- isof