bbb bbi bbo bbr bbs bbt bi- bib bii bio bir bis bit bob boi boo bor bos bot brb bri bro brr brs brt bsb bsi bso bsr bss bst btb bti bto btr bts btt ibb ibi ibo ibr ibs ibt iib iii iio iir iis iit io- iob ioi ioo ior ios iot ir- irb iri iro irr irs irt is- isb isi iso isr iss ist itb iti ito its itt o-i ob- obb obi obo obr obs obt oib oii oio oir ois oit oo- oob ooi ooo oor oos oot or- orb ori oro orr ors ort os- osb osi oso osr oss ost ot- otb oti oto otr ots ott rbb rbi rbo rbr rbs rbt rib rii rio rir ris rit rob roi roo ror ros rot rrb rri rrr rrs rrt rsb rsi rso rsr rss rst rtb rti rto rtr rts rtt sbb sbi sbo sbr sbs sbt sib sii sio sir sis sit sob soi soo sor sos sot sr- srb sri sro srr srs srt ss- ssb ssi sso ssr sss sst stb sti sto str sts stt tbb tbi tbo tbr tbs tbt tib tii tio tir tis tit to- tob toi too tor tos tot trb tri tro trr trs trt tsb tsi tso tsr tss tst ttb tti tto ttr tts ttt

bbbb bbbs bibb bibi bibo bibs biis bio- bioi bios biot birb biri biro birr birs birt bis- biso biss bist bito bits bitt bobb bobi bobo bobs boi- boii bois boit boob boor boos boot bor- bori boro borr bors bort bosi boso boss bost botb boti boto bots bott brio bris brit brob broo bror bros brot brrr brrs brsb brsr brst bsos bsts btob btor btrt btss bttb ibis ibos ibot ibri ibro ibss ibtb ibts iiii iiio iiis iiit iioi iioo iios iirs iisi iisr iist iitr iitt iobi ioii ioio ioit iooi iooo ioos iori iors ioso ioto iri- irio iris irob irri irrs irti irts isbt isis isit iso- isor isos isri issi isso issr isss isti isto istr ists itbs itis itoi itoo itor itos itri itrs itsi itso itto obbo obis obit oboi obor obos obot obri obro obsr obss obst obts oiii oios oirt oist oiti oobi oooo ooos oort oosi oost ootb oots orbb orbi orbo orbs ori- orio oris orit oro- oror oros orot orri orro orrs orsi orso orto orts osii osis osoi osoo osor osos osro ossb ossi osso osti ostr osts otbs otis otit oto- otoo otor otos otro otrs otso otti otto otts rbbb rbbr rbbs rbis rbss rbst rib- ribo ribs riis rios riot riri rirs risi riso riss rist riti rito rits ritt rob- robb robi robo robs robt roio roir rois roit roob rooi roor roos root rori roro rort rosi roso ross rost roti roto rotr rots rott rrrr rsbi rsis rsos rsts rtss rtts s-ib s-ii s-os sbbs sbor sbot sbsi sbst sibi sibo sibs siit sior sios siot siri siro sirr sirs sirt sisi siss sist sit- siti sito sits sitt sobo sobr sobs sobt soir sois soit soor soos soot sorb sori soro sorr sors sort sosi soso soss sost soto sots srib sris sros srtr ssbr ssis ssit ssot ssri ssrs sssb sssi ssss sstb ssts stbs stib stio stir stis stit stob stoo stor stos stot stri stro strs stsi stss sttr tbbs tbit tbrb tbst tibi tibs tiit tios tirb tiri tiro tirr tirs tisb tisi tiso tiss tist titi tito tits titt tobi tobo tobs tobt tois toit toor toos toot tori toro torr tors tort tosb tosi toso toss tost toti toto totr tots tott tri- trib trio tris trit troi troo tros trot trsi trst trtr tsis tsob tsoi tsos tssi tssr tsst tsts ttbb ttss tttt

-itis bibbo bibbs bibio bibis bibos bibri bioss biros birrs birst birts bisto bitis bitit bitti bitto bitts bo-bo bobbi bobos bobr bobri bobst bobts boios boiro boist boito boobs booit boors boort boost boots borbo borio boris boro- boroo boros borot borro borsi borst borts bosio bosor bossi bosso botis botos botro botti botts briot brisb brisi briss brist brito brits britt brobo brobs broos bross broto brrrr btr-t i-bot ibibo ibros iiiii iiris iisir iitti iobit ioooi ioooo iorio iotit iotti irbis irbit irios iris- iriss irobo irori irrit irssi is-is isios isiro isisi isiti isits isitt isrib issor istoo itbit itisi itiso itobi itoss itsit itsso itsto ittoo ittti o-r-b obits oboro obosi oirot oitti oobit ooioo ooooo orbis orbit orbot oribi orist orito orits orobo orosi oroso orost orris orsis orsit ortoo ososo ossi- ossis ossos ostir ostis ostri ostro otisb otobi otori otoso ototo otros ottir ottis ottoi ottos ribbi ribo- ribot riots risso risti risto ritts ro-ro robbi robbo robbs robo- robor robot robrt roiot roist roosi roost roots rorts rosis rossi rosso rosss rosto rosts rotis roto- rotor rotos rotot rotti rotto s-bot s-iii s-o-r sibir sibor sibos sibot siirt sirio siris siror siros sirsi sisis sisor sissi sisto sists sitio sitit sito- sitor sitsi sitti so-so sobor sobri soirs soori soort soosi soots sorbo sorbs sorbt sorio soror soros sorso sorti sorts soss- sossi sosti sosto sotio sotoo sotos sotto sotts sroot sssrb sssss stib- stibb stibo stiir stiro stirs stirt stitt stobi stobs stoib stoir stoit stoob stoor stoos stoot storb storo storr stors stort stoss stots stott strib strit stros strot strrs tbtbt ti-ti tibbi tibbs tibor tibro tiris tirit tiro- tiroi tiros tirrs tirso tisis tisor tisri tiss- tissi tisso titii titis titos titti tobit tobor tobot toist toits toobs toost toots torii torio toris torit torob toros torri torro torrs torsi torso torst torti torto torts tosir tosit tosos toss- tosti tosto toti- toto- totoo totos tribs trior trios tris- triss trist trit- trito trits tritt trois tross trost trots trott tsito tsoro tsort ttttt

bbbbbb bibiri bibost biobor biotti biribi birori bisoro bistro bitrot bittor