otit oto- otof otoh otoo otor otos otro otrs otso otti otto otts rbbb rbbr rbbs rbhs rbis rboh rbss rbst rfhs rhfs rhhs rhib rhio rhob rhoh rhos rib- ribo ribs riff rifs rift riho rihs riht riif riis rios riot riri rirs rish risi riso riss rist rith riti rito rits ritt rob- robb robi robo robs robt roff rofo rohr rohs roif roio roir rois roit roob roof rooi roor roos root rori roro rort rosh rosi roso ross rost roth roti roto rotr rots rott rrhs rrif rrrr rsbi rshs rsis rsos rsts rtbf rtfb rths rtss rtts s-ib s-ii s-os sbbs sbhs sbor sbot sbsi sbst sfhs sfio sfor sfos sfro sfss sfts shbs shbt shft shhh shhs shib shih shii shio shir shis shit shof shoo shor shos shot shri shrs shts sibi sibo sibs siff sifo sifr sift sihi sihr sihs siht siit sior sios siot sirf siri siro sirr sirs sirt sish sisi siss sist sit- sith siti sito sits sitt sobo sobr sobs sobt sofi sofo soft sohh soho sohs soif soir sois soit soof soor soos soot sorb sorh sori soro sorr sors sort sosh sosi soso soss sost soth soto sots srfi srhs srib sris sros srtr ssbr sshs ssis ssit ssot ssri ssrs sssb sssf sssh sssi ssss sstb ssth ssts stbs sths stib stif stih stio stir stis stit stob stof stoo stor stos stot stri stro strs stsf stsi stss sttr tbbs tbhs tbit tbrb tbst tfot tfrs tfsi tfss thbs thi- thif thio thir this thof thoo thor thos thot thri thro thsr thss thtb thtr thts tibi tibs tiff tifo tift tiht tiit tios tirb tiri tiro tirr tirs tisb tish tisi tiso tiss tist tith titi tito tits titt tobi tobo tobs tobt toff tofi tofo toft tohi toho tois toit toof tooh toor toos toot torf tori toro torr tors tort tosb tosh tosi toso toss tost toth toti toto totr tots tott trfr trhs tri- trib trif trio tris trit troi troo tros trot trsi trst trtr tshb tshi tshs tsis tsob tsoi tsos tssf tssi tssr tsst tsts ttbb ttff ttss tttt

-itis bhooi bhoot bibbo bibbs bibio bibis bibos bibri biffi biffo biffs bifor bihor bioss biros birrs birst birth birts bisfi bishi bisht bisto bitis bitit bitof bitti bitto bitts bo-bo bo-ho bobbi bobos bobr bobri bobst bobts boffi boffo boffs bofhs bohor bohos bohot bohri bohrs boios boiro boist boito boobs boofs booit boors boort boosh boost booth boots borbo borio boris boro- boroo boros borot borro borsh borsi borst borth borts boshi bosio bosor bossi bosso botis botos botro botti botts briot brisb brish brisi briss brist brith brito brits britt brobo brobs broft broos bross broth broto brrrr brths bshot bsoft btr-t btrfs fibis fibr- fibro fifth fiori firit firos first firth fisbo fisho fissi fisto fists fitho fitit fitof fitor fitri fitto fitts fofos foios foir- foist footi foots forbs forio forit foros forro forso forss forst forth forti forto forts fotos friis frios friso friss frist frith frito frits fritt frobs froit froot frosh frost froth frots ftrtt h-bio h-iib hhhhh hi-fi hi-hi hibbs hibhi hibit hibob hibor hibri hifis hihos hiisi hiroi hiroo hiros hirsh hirst hirth hirts hisis hisor hissi hisss hist- histi histo hists hitit hitof hitor hitto ho-ho ho-oh hobbs hobit hobor hobos hobro hoffs hofii hofit hohos hohot hoiss hoist hoofs hooft hoori hoors hoort hoosh hoost hoots horii horio horos horro horst horth horti horto hoshi hosho hosoi hosts hostt hothr hoths hotis hotot hotto hrhis hross hthrt i-bot ibibo ibish iboth ibros if-- iffhs ifish ifits ifrit ifttt ihhof iiiii iiris iisir iitti iobit ioooi ioooo iorio iotit iotti irbis irbit irios iris- irish iriss irobo irori irrit irshi irssi is-is isfit isfor ishii ishis ishof ishot ishti isios isiro isisi isiti isits isitt isoff isoft isrib isshi issor istoo itbit itfit itfor ithot itisi itiso itobi itoff itoss itsit itsof itsso itsto ittoo ittti o-r-b obhor obits oboro obosi oboth offir offis offit offof offto ofori ofoto ofsit oh-oh oh-so ohbot ohfoo ohohs ohrio ohrob ohrot oirot oishi oitti oobit ooioo ooooh ooooo orbis orbit orbot orfor oribi orist orito orits orobo orosh orosi oroso orost orris orsis orsit orth- ortho ortoo oshio ososo ossi- ossis ossos ostir ostis ostri ostro othis othoi othos otisb otobi otori otoso ototo otros ottir ottis ottoi ottos ri-fi ribbi ribo- ribot riffs rifts riots rishi rissh risso risti risto rithi ritts ro-ro robbi robbo robbs robo- robor robot robrt rofor rohff rohit rohob rohri roiot roist roofs rooft roohi roosi roost roots rorts roshi rosis rossi rosso rosss rosto rosts rotho roths rotis roto- rotor rotos rotot rotti rotto rsssf s-bot s-iii s-o-r shhhh shibi shift shiho shihr shiri shiro shirr shirt shish shiso shist shito shits shobi shobo shoff shoir shoit shoof shooi shoor shoos shoot shoro shorr shors short shosh shosi shoth shots shott shris shrob shtit shtof sibir sibor sibos sibot siftr sifts sihor sihot sihri sihrs siirt sirih sirio siris siror siros sirsi sisis sisor sissi sisto sists sitio sitit sito- sitor sitsi sitti so-ho so-so sobor sobri sofis softs sohio sohos sohot soirs soori soort soosi sooth soots sorbo sorbs sorbt sorio soror soros sorso sorth sorti sorts soshi soss- sossi sosti sosto sothi sotho sotio sotoo sotos sotto sotts sroof sroot sshfs sssrb ssssh sssss stfis sthrt stib- stibb stibo stiff stift stihi stiif stiir stiro stirs stirt stith stitt stobi stobs stoff stohr stoib stoir stoit stoob stoor stoos stoot storb storo storr stors stort stoss stoth stots stott strib strif strit strof stroh stros strot strrs tbtbt thibi thift thio- thiri thirs thisi thiss thoff thoft thori thoro thorr thors thort thost thoth thoti thris throb throo throt thsts ti-hi ti-ti tibbi tibbs tibor tibro tiffs tifts tiris tirit tiro- tiroi tiros tirrs tirso tirth tisis tisof tisor tisri tiss- tissi tisso tithi titho titii titis titof titos titti to-ho