bbbb bbbs bbin bbpr bibb bibi bibo bibs biin biis bin- bini binn bino bins bint bio- bioi bion bios biot bipp bips birb biri birn biro birr birs birt bis- biso bisp biss bist bito bits bitt bnib bnin bnor bnpp bnrr bnss bobb bobi bobo bobs boi- boii boin bois boit boni bonn bono bons bont boob boon boop boor boos boot bopp bops bor- bori born boro borr bors bort bosi bosn boso boss bost botb boti botn boto bots bott bpot bpti brin brio bris brit brno brns brob bron broo bror bros brot brrr brrs brsb brsr brst bsin bsns bson bsos bspp bspr bsts btbp btob btor btps btrt btss bttb i-no ibis ibns ibon ibos ibot ibri ibro ibsn ibss ibtb ibts iiii iiio iiis iiit iino iioi iioo iiop iios iirs iisi iisp iisr iist iitr iitt inbo inis init inni inno innr inns ino- inoi inon inor inos inot inp- inpi inpp inpt inri inro inrs inso insp inss inst inti intn into intp intr ints iobi ioii ioio ioit ioni ionn iono ions iooi iooo ioos iops iori iors ioso ioto ipin ipop ipos ippo ippr ipri ipsi ipso ipsp ipss ipto ipts irbp iri- irin irio irip iris irob iron irop irps irri irrs irsp irti irtp irts isbn isbt isin isis isit isno isnt iso- ison isop isor isos ispr isps isri isrp issi isso issp issr isss isti isto istp istr ists itbs itin itis itno itoi iton itoo itor itos itri itrs itsi itso itsp itto n-ii nbbo nbpp nbps nbsp nbti nibi nibo nibs niip niir niit nini nino nins nion nioo nios nipr nips nipt niro nirs nirt nisi niso nisp niss nist nitb niti nito nitr nits nnit nnnn nnos nnot nnpi nnpr nnss nntn nobi nobo nobs noib noin noio noir nois noit non- noni nonn nono nons nont noo- noob noon nooo noop noor noos noot nops nor- norb nori norn noro norr nors nort nos- noss nost not- noti noto nots nott npin npri nprt npss nptn nron nrpn nrps nrsp nrts nsbo nsin nsis nsnr nsos nspi nsps nssb nsso nssp nssr nsss nstp nsts ntis ntop 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 onpt onso onst ont- onti onto oobi oons oont oooo ooos oops oort oosi oost ootb ootp oots opii opin opio opis opit opo- opon opor opos oppi oppo opps opsi opti optn opto opts orbb orbi orbo orbs ori- orin orio oris orit orni orno orns oro- oron oror oros orot orpi orps orri orro orrs orsi orso orto orts osbp osii osin osip osis osno osnr osoi osoo osor osos osro ossb ossi osso osti ostr osts otbs otin otis otit oto- oton otoo otor otos otpp otro otrs otso otti otto otts pbrs pbsp pibb pibi piip pini pinn pino pinp pins pint piob pion piot pipi pipo pipp pips piri pirn piro pirr pirs pisi piso piss pist piti pito pitr pits pitt pnin pnon pnot pnpo pnpp pnro pntr pobo pobs poin poio pois poni pono ponp pons pont poon poop poor poos poot pop- popi popo popp pops popt porb pori porn poro porr pors port posb posi posn poso poss post poti poto pots pott ppib ppos pppn pppo pppp ppps ppss pptn ppts pptt prbs pri- prii prin pris prnp pro- prob pron proo prop pros prot prps prri prrs prsi prso prss prti prtp prtr psbr psbt psip psis psni psnr psoi pson psos pspi pspp pspr psps psrp psso psst psts ptop rbbb rbbr rbbs rbis rbsp rbss rbst rib- ribo ribs riin riis rinn rino rion rios riot ripi ripp ripr rips ript riri rirs risi riso risp riss rist riti rito rits ritt rnbr rnin rnnt rnot rnsp rntp rob- robb robi robo robs robt roin roio roir rois roit roni rono rons ront roob rooi roon roop roor roos root ropo rops rori roro rort rosi roso rosp ross rost roti rotn roto rotr rots rott rpii rpob rpon rpos rppn rpps rptn rpts rrrr rrsp rsbi rsis rsnn rsno rsnr rsos rspb rspo rsps rstp rsts rtns rtps rtss rttp rtts s-ib s-ii s-os sbbs sbor sbot sbsi sbsp sbst sbtn sibi sibo sibs siit sini sinn sino sinp sins sint sion siop sior sios siot sipi sipo sipp sips sipt siri siro sirp sirr sirs sirt sisi siss sist sit- siti sitn sito sits sitt snib snip snir snit snns snob snoo snop snor snos snot snpo snpp snrs sntr sobo sobp sobr sobs sobt soin soir sois soit son- soni sono sons sont soon soop soor soos soot sopi sopo sopp sops sorb sori sorn soro sorr sors sort sosi soso soss sost sotn soto sotp sots spib spin spio spip spir spis spit spns spon spoo spop spor spos spot spps spri spro sprs spso spsp spss spst sptb spto sptr spts srib sris srni srnn srno sros srps srpt srsp srtp srtr ssbn ssbr ssin ssis ssit ssns ssop ssot sspo ssps sspt ssri ssrs sssb sssi ssss sstb sstp ssts stbs stib stio stip stir stis stit stnn stnr stns stob ston stoo stop stor stos stot stpp stps stri strn stro strs stsi stss sttr tbbs tbit tbrb tbsp tbst tbtp tibi tibs tiit tini tinn tino tins tint tion tiop tios tip- tipi tipo tipp tips tipt tirb tiri tiro tirr tirs tisb tisi tiso tiss tist titi tito titp tits titt tnsp tnts tobi tobo tobs tobt tois toit tonb toni tonn tono tons toon toor toos toot top- topi topo topp tops topt tori torn toro torp torr tors tort tosb tosi toso toss tost toti toto totr tots tott tpir tpon tppp tppr tprs tptp tptr tri- trib trin trio trip tris