bbb bbd bbo bbr bbs bbt bdb bdd bdo bdr bds bdt bob bod boo bor bos bot brb brd bro brr brs brt bsb bsd bso bsr bss bst btb btd bto btr bts btt dbb dbd dbo dbr dbs dbt ddb ddd ddo ddr dds ddt dob dod doo dor dos dot drb drd dro drr drs drt dsb dsd dso dsr dss dst dtb dtd dto dtr dts dtt ob- obb obd obo obr obs obt odb odd odo odr ods odt oo- oob ood ooo oor oos oot or- orb ord oro orr ors ort os- osb osd oso osr oss ost ot- otb otd oto otr ots ott rbb rbd rbo rbr rbs rbt rdb rdd rdo rdr rds rdt rob rod roo ror ros rot rrb rrd rrr rrs rrt rsb rsd rso rsr rss rst rtb rtd rto rtr rts rtt sbb sbd sbo sbr sbs sbt sdb sdd sdo sdr sds sdt sob sod soo sor sos sot sr- srb srd sro srr srs srt ss- ssb ssd sso ssr sss sst stb std sto str sts stt tbb tbd tbo tbr tbs tbt tdb tdd tdo tdr tds tdt to- tob tod too tor tos tot trb trd tro trr trs trt tsb tsd tso tsr tss tst ttb ttd tto ttr tts ttt

bbbb bbbs bbdd bbdo bd-r bdos bdsd bobb bobo bobs bodb bodo bods boob bood boor boos boot bor- bord boro borr bors bort boso boss bost botb botd boto bots bott brdo brds brdt brob brod broo bror bros brot brrr brrs brsb brsr brst bsbd bsod bsos bsrd bssd bsts btdt btob btor btrt btss bttb d-bo dbos dbrs dbss dbtt dddd ddot ddss ddts dobb dobs dod- dodd dodo dods doob dood door doos doot dord doro dorr dors dort doso doss dost dotd doto dots dott drob drod drot drrs dsdr dsos dsrr dsst dsto dsts dtor dtot dtss obbo obdt obor obos obot obro obsd obsr obss obst obtd obts odbo oddd odds odoo odor odos odot odso odts oooo ooos oord oort oost ootb oots orbb orbo orbs ordo ords oro- oror oros orot orro orrs orso orto orts osoo osor osos osrd osro ossb ossd osso ostr osts otbd otbs oto- otoo otor otos otro otrs otso otto otts rbbb rbbr rbbs rbds rbsd rbss rbst rdos rdso rob- robb robo robs robt rodd rodo rods roob rood roor roos root roro rort roso ross rost roto rotr rots rott rrrr rsdd rsds rsos rsts rtdt rtss rtts s-os sbbs sbds sbor sbot sbsd sbst sdds sdot sdrs sdss sobo sobr sobs sobt sodd sodo sods sood soor soos soot sorb sord soro sorr sors sort soso soss sost soto sots sros srsd srtr ssbr ssdd ssot ssrs sssb ssss sstb sstd ssts stbd stbs stds stob stod stoo stor stos stot strd stro strs stss sttd sttr tbbs tbrb tbst tddb tdor tdss tobo tobs tobt todd todo tods todt tood toor toos toot tord toro torr tors tort tosb toso toss tost totd toto totr tots tott trod troo tros trot trsd trst trtr tsbd tsdb tsob tsos tssr tsst tsts ttbb ttss tttt

bdoor bdort bo-bo bobos bobr bobst bobts bodd- bodor bodos boobs boord boors boort boost boots borbo bordo bords boro- borod boroo boros borot borro borst borts bosor bosso botos botro botts brobo brobs brodd brodo brood broos bross broto brrrr btr-d btr-t d-dot d-rod dbdos dbtss ddddd ddost do-do dobbs dobos dobro dodds dodoo dodos dodro doobs doodo doods doors doost dordt doros dorot dorrs dors- dorso dorst dorts dosso dot-s dotoo dotto drbob drdos drobo drood dross drost drott o-r-b obodo oboro odors ooooo orbot ordos ordro orobo orodo oroso orost ortoo ososo ossos ostro otoso ototo otros ottos ro-ro robbo robbs robo- robor robot robrt rodbo rodor rodos roods roost roots rorts rosso rosss rosto rosts roto- rotor rotos rotot rotto s-bot s-o-r so-so sobor soddo sodor soord soort soots sorbo sorbs sorbt sordo sords soror soros sorso sorts soss- sosto sotoo sotos sotto sotts sroot ssdrs sssrb sssss stdos stobs stoob stood stoor stoos stoot storb stord storo storr stors stort stoss stots stott stros strot strrs tbtbt to-do tobor tobot todds todor todos toobs toord toost toots torob toros torro torrs torso torst torto torts tosos toss- tosto toto- totoo totos trods trood tross trost trots trott tsoro tsort ttttt

bbbbbb bobbos booboo boorts boosts borbor bororo bososo botoro broods broots brosso brotto bs-tbs dobros dododo doorto dorbod dorobo dorood dororo dorso- dossor dotbot dotdot dotodo dr-dos drobot drotts obsorb odsbob oooooo oordoo orbost ossott ottoor roboto robots roosts rorodt rostr- rotors sb-dos sobos sodros soords soorts soosoo sordor sorors sorsor sostro ssorts stobbs storrs stotts strodt strood stroot stross strost strtod tdrs-b to-dos toboot toboso toddos tootoo torodo tororo torsor torsos tortor tossto totoro totrot tottos tr-dos troost troots trosso trotro trsdos tsotso

bbbbbbb bobross boo-boo booboos bosoord bosorod bossost dob-dob dobrodo dod-rot doo-doo oddsbob oroboro ostoros ottrott rootrot rostro- rostrot sootoro sssssss stoodto strobo- stroots too-too torsors tototoo tro-tro troodos trstbrd

bbbbbbbb bo-bo-bo bobobobs btdtbtts dottodot ods-bobs stroobos toottoot torotoro

borborbor bosssssts bottsdots ddddddddd doot-doot dotdotdot dottodots sotodosos

bobbobbobs bootsroots doortodoor

door-to-door

bbbbbbbbbbbbbbb doodoodoodoodoo