b-u bbb bbd bbi bbo bbs bbt bbu bby bdb bdd bdi bdo bds bdt bdu bdy bi- bib bid bii bio bis bit biu biy bob bod boi boo bos bot bou boy bsb bsd bsi bso bss bst bsu bsy btb btd bti bto bts btt btu bty bub bud bui buo bus but buu buy by- byd byi byo bys byt byu dbb dbd dbi dbo dbs dbt dbu dby ddb ddd ddi ddo dds ddt ddu ddy di- dib did dii dio dis dit diu diy dob dod doi doo dos dot dou doy dsb dsd dsi dso dss dst dsu dsy dtb dtd dti dto dts dtt dtu dty dub dud dui duo dus dut duy dy- dyb dyd dyo dys dyu dyy i-d ibb ibd ibi ibo ibs ibt ibu iby idb idd idi ido ids idt idu idy iib iid iii iio iis iit iiu io- iob iod ioi ioo ios iot iou is- isb isd isi iso iss ist isu isy itb itd iti ito its itt itu ity iu- iub iud iui ius iut iyo iys iyt iyy o-i ob- obb obd obi obo obs obt obu oby odb odd odi odo ods odt odu oib oid oii oio ois oit oiu oo- oob ood ooi ooo oos oot os- osb osd osi oso oss ost osu ot- otb otd oti oto ots ott otu ou- oud oui ouo ous out oyd oyi oyo oys sbb sbd sbi sbo sbs sbt sbu sby sdb sdd sdi sdo sds sdt sdu sdy sib sid sii sio sis sit siu sob sod soi soo sos sot sou soy ss- ssb ssd ssi sso sss sst ssu stb std sti sto sts stt stu sty sub sud sui suo sus sut suu suy sy- syb syd syi sys syt syu tbb tbd tbi tbo tbs tbt tbu tdb tdd tdi tdo tds tdt tdu tdy tib tid tii tio tis tit tiu tiy to- tob tod toi too tos tot tou toy tsb tsd tsi tso tss tst tsu tsy ttb ttd tti tto tts ttt ttu tty tub tud tui tuo tus tut tuu tuy tyd tyo tys tyt ubb ubi ubo ubs ubt ubu uby udb udd udi udo uds udt udu uib uid uii uio uis uit uiu uob uod uoo uos uot usb usd usi uso uss ust usu utb utd uti uto uts utt utu uty uus uut uuu uyi uyo uys uyu ybi ybs yby ydo yds ydt ydy yid yii yio yis yit yob yod yoi yoo yos yot you yoy ysb ysi yso yss yst ysu ysy ytd yto yts ytt ytu yud yui yuo yus yut yuu yuy yyb yys yyt yyu yyy

-ous bbbb bbbs bbdd bbdo bboy bbyo bdii bdos bdsd bibb bibi bibo bibs bidi bido bids bidu biis bio- bioi bios biot biou bis- bisd biso biss bist bisu bisy bitd bito bits bitt bitu biys bobb bobi bobo bobs bobu boby bodb bodi bodo bods bodu body boi- boid boii bois boit boiu boob bood boos boot bosi boso boss bost bosu botb botd boti boto bots bott boty boud bous bout bouy boyd boyi boyo boys bsbd bsod bsos bssd bsts btdt btob btss bttb btus bubb bubi bubo bubs bubu budb budd budi budo buds budu budy buid buis buit buiu buoy busi buss bust busu busy but- buti buto buts butt buty buus buyi buyo buys buyu byit byob byod byoi byos bysb bysi byso byss byst bysy byts byyd d-bo dbit dbos dboy dbss dbtt dbus dddd ddot ddss ddts ddub dibb dibo dibs diby didi dido dids didu didy diii diis dios diot diou dis- disd disi diso diss dist disy diti dito dits ditt dius diyi diyu dobb dobi dobs dobu doby dod- dodd dodi dodo dods dody doid dois doit doob dood doos doot dosi doso doss dost dosy dotd doti doto dots dott doty doub doud dous dout douy doyo dsos dssi dsst dsto dsts dtot dtss dub- dubb dubs dubu duby dudd dudo duds dudu duid duis duit duo- duos dusi dust dusy duts duty duut dybt dybu dydd dyio dyit dyo- dyoo dyot dyou dys- dysi dyss dyst dyt- dyty i-by ibdo ibid ibis ibos ibot ibss ibtb ibts ibus ibuy ibyi iddo idid idio idis idos idso idss idts idub iduo idus iiii iiio iiis iiit iioi iioo iios iisd iisi iist iisu iitt iobi ioby iod- iodd iodo ioii ioio ioit iooi iooo ioos ioso iosu ioto ious isbd isbt isdb isds isis isit iso- isos issi isso isss issu issy istd isti isto ists isty isus isys itbs itby itdo itis itoi itoo itos itou itsi itso itsu itsy itto itty iuds iuiu iusd iuss iust iuty iyos obbo obby obdt obid obis obit oboi obos obot oboy obsd obss obst obtd obts obus odbo oddd oddi odds oddy odio odis odiu odoo odos odot odou odso odts odtu odus oido oids oiii oios oisd oist oisu oiti oobi ooby oodi ooid oooo ooos oosi oost ootb oots ooty oous osby osdi osii osis osoi osoo osos ossb ossd ossi osso ossu ossy osti osts osyt otbd otbs otis otit oto- otoo otos otoy otso otsu otti otto otts ottu otus oubs ouds ouii ouis ouit ousd oust out- outb outi outo outs outy ouu- oyou oyss oyst s-ib s-ii s-os sbbs sbds sbot sbsd sbsi sbst sbus sdds sdib sdio sdot sdss sdsu sibi sibo sibs sibu siby sidd sidi sido sids sidy siit siod sios siot siou sisd sisi siss sist sisu sisy sit- sitd siti sito sits sitt situ sity siui sius siut siyi siyu sobo sobs sobt sobu sodd sodo sods sodu sody sois soit sood soos soot sooy sosi soso soss sost soto sots sotu soud sous sout soyo soys soyt ssby ssdd ssid ssis ssit ssot sssb sssi ssss sstb sstd ssts stbd stbs stds stib stid stio stis stit stob