bbb bbi bbn bbo bbr bbs bbt bi- bib bii bin bio bir bis bit bnb bni bnn bno bnr bns bnt bob boi bon boo bor bos bot brb bri brn bro brr brs brt bsb bsi bsn bso bsr bss bst btb bti btn bto btr bts btt ibb ibi ibn ibo ibr ibs ibt iib iii iin iio iir iis iit in- inb ini inn ino inr ins int io- iob ioi ion ioo ior ios iot ir- irb iri irn iro irr irs irt is- isb isi isn iso isr iss ist itb iti itn ito its itt n-i nbb nbi nbn nbo nbr nbs nbt nib nii nin nio nir nis nit nnb nni nnn nno nns nnt no- nob noi non noo nor nos not nrb nri nrn nro nrr nrs nrt nsb nsi nsn nso nsr nss nst ntb nti ntn nto ntr nts ntt o-i ob- obb obi obn obo obr obs obt oib oii oin oio oir ois oit on- onb oni onn ono onr ons ont oo- oob ooi oon ooo oor oos oot or- orb ori orn oro orr ors ort os- osb osi osn oso osr oss ost ot- otb oti otn oto otr ots ott rbb rbi rbn rbo rbr rbs rbt rib rii rin rio rir ris rit rnb rni rnn rno rnr rns rnt rob roi ron roo ror ros rot rrb rri rrn rrr rrs rrt rsb rsi rsn rso rsr rss rst rtb rti rtn rto rtr rts rtt sbb sbi sbn sbo sbr sbs sbt sib sii sin sio sir sis sit snb sni snn sno snr sns snt sob soi son soo sor sos sot sr- srb sri srn sro srr srs srt ss- ssb ssi ssn sso ssr sss sst stb sti stn sto str sts stt tbb tbi tbn tbo tbr tbs tbt tib tii tin tio tir tis tit tnb tni tnn tno tnr tns tnt to- tob toi ton too tor tos tot trb tri trn tro trr trs trt tsb tsi tsn tso tsr tss tst ttb tti ttn tto ttr tts ttt

bbbb bbbs bbin bibb bibi bibo bibs biin biis bin- bini binn bino bins bint bio- bioi bion bios biot birb biri birn biro birr birs birt bis- biso biss bist bito bits bitt bnib bnin bnor bnrr bnss bobb bobi bobo bobs boi- boii boin bois boit boni bonn bono bons bont boob boon boor boos boot bor- bori born boro borr bors bort bosi bosn boso boss bost botb boti botn boto bots bott brin brio bris brit brno brns brob bron broo bror bros brot brrr brrs brsb brsr brst bsin bsns bson bsos bsts btob btor btrt btss bttb i-no ibis ibns ibon ibos ibot ibri ibro ibsn ibss ibtb ibts iiii iiio iiis iiit iino iioi iioo iios iirs iisi iisr iist iitr iitt inbo inis init inni inno innr inns ino- inoi inon inor inos inot inri inro inrs inso inss inst inti intn into intr ints iobi ioii ioio ioit ioni ionn iono ions iooi iooo ioos iori iors ioso ioto iri- irin irio iris irob iron irri irrs irti irts isbn isbt isin isis isit isno isnt iso- ison isor isos isri issi isso issr isss isti isto istr ists itbs itin itis itno itoi iton itoo itor itos itri itrs itsi itso itto n-ii nbbo nbti nibi nibo nibs niir niit nini nino nins nion nioo nios niro nirs nirt nisi niso niss nist nitb niti nito nitr nits nnit nnnn nnos nnot nnss nntn nobi nobo nobs noib noin noio noir nois noit non- noni nonn nono nons nont noo- noob noon nooo noor noos noot nor- norb nori norn noro norr nors nort nos- noss nost not- noti noto nots nott nron nrts nsbo nsin nsis nsnr nsos nssb nsso nssr nsss nsts ntis ntsb ntss ntto nttr obbo obin obis obit oboi obon obor obos obot obri obro obsn obsr obss obst obts oiii oins oint oion oios oirt oist oiti onir onis onit onni onno onon onor onos onso onst ont- onti onto oobi oons oont oooo ooos oort oosi oost ootb oots orbb orbi orbo orbs ori- orin orio oris orit orni orno orns oro- oron oror oros orot orri orro orrs orsi orso orto orts osii osin osis osno osnr osoi osoo osor osos osro ossb ossi osso osti ostr osts otbs otin otis otit oto- oton otoo otor otos otro otrs otso otti otto otts rbbb rbbr rbbs rbis rbss rbst rib- ribo ribs riin riis rinn rino rion rios riot riri rirs risi riso riss rist riti rito rits ritt rnbr rnin rnnt rnot rob- robb robi robo robs robt roin roio roir rois roit roni rono rons ront roob rooi roon roor roos root rori roro rort rosi roso ross rost roti rotn roto rotr rots rott rrrr rsbi rsis rsnn rsno rsnr rsos rsts rtns rtss rtts s-ib s-ii s-os sbbs sbor sbot sbsi sbst sbtn sibi sibo sibs siit sini sinn sino sins sint sion sior sios siot siri siro sirr sirs sirt sisi siss sist sit- siti sitn sito sits sitt snib snir snit snns snob snoo snor snos snot snrs sntr sobo sobr sobs sobt soin soir sois soit son- soni sono sons sont soon soor soos soot sorb sori sorn soro sorr sors sort sosi soso soss sost sotn soto sots srib sris srni srnn srno sros srtr ssbn ssbr ssin ssis ssit ssns ssot ssri ssrs sssb sssi ssss sstb ssts stbs stib stio stir stis stit stnn stnr stns stob ston stoo stor stos stot stri strn stro strs stsi stss sttr tbbs tbit tbrb tbst tibi tibs tiit tini tinn tino tins tint tion tios tirb tiri tiro tirr tirs tisb tisi tiso tiss tist titi tito tits titt tnts tobi tobo tobs tobt tois toit tonb toni tonn tono tons toon toor toos toot tori torn