rios riot riou riri rirs risi riso riss rist risu riti rito rits ritt ritu rius rob- robb robi robo robs robt robu rogg rogi rogo roig roio roir rois roit roiu roob roog rooi roor roos root rori roro rort roru rosi roso ross rost rotg roti roto rotr rots rott roub rous rout rrrr rsbi rsgb rsis rsos rsts rstu rtgs rtss rtts rubb rubi rubs rubu rugg rugi rugs ruis ruit ruri ruro rurs ruru rusi ruso russ rust rusu ruti ruto ruts rutt rutu s-ib s-ii s-os sbbs sbig sbor sbot sbsi sbst sbus sggg sggs sgio sgro sgss sgts sibi sibo sibs sibu sigg sigi sigo sigs siit sior sios siot siou siri siro sirr sirs sirt siru sisi siss sist sisu sit- siti sito sits sitt situ siui sius siut sobo sobr sobs sobt sobu sogi sogo sogs soir sois soit soog soor soos soot sorb sorg sori soro sorr sors sort soru sosi soso soss sost soto sots sotu sour sous sout srgb srib sris sros srtr srub ssbr ssgs ssgt ssis ssit ssot ssrg ssri ssrs sssb sssi ssss sstb ssts stbs stgr stib stig stio stir stis stit stob stog stoo stor stos stot stou stri stro strs stru stsi stss sttr stub stug stur stus stut sub- subb subg subi subo subs sug- sugg sugi sugo suig suio suir suis suit suor suos sur- surg suri suro surr surs surt suru sus- susi suso suss sust susu suti suto sutu suus tbbs tbgs tbit tbrb tbst tgts tibi tibs tibu tigi tigr tigs tiit tiiu tios tiou tirb tiri tiro tirr tirs tiru tisb tisi tiso tiss tist titi tito tits titt titu tobi tobo tobs tobt tobu togo togr togs togt tois toit toor toos toot torg tori toro torr tors tort toru tosb tosi toso toss tost tosu toti toto totr tots tott toug toui tour tous tout tri- trib trig trio tris trit trog troi troo tros trot trou trsi trst trtr trub trug trus trut truu tsgt tsig tsis tsob tsoi tsos tsou tssg tssi tssr tsst tsts tsui ttbb ttss tttt tubb tubo tubr tubs tubu tugg tugs tugu tuig tuis tuit tuiu tuor tuos turb turg turi turo turr turs turt turu tusi tuss tust tuti tuto tuts tutt tutu tuuo ubbi ubbo ubii ubir ubis ubit ubos uggo uggs uggt ugis ugos ugri ugro ugur uguu uirr uist uits uor- urbi urbs urgi urgu urib uris uriu uro- uroo urri ursi urso urss ursu urts urur urus urut usbr usbs usgo usis usog usoi usos ussb ussr usss usst ussu ustb usti usto usts usui usus utis utor utri utti utto uttu utug uuri uusi uuuu

-itis bbuss bibbo bibbs bibio bibis bibos bibri bibus big-i biggs bigig bigoo bigos bigot bigrs biogs bioss birgi birgu biros birou birrs birst birts birur bisou bisto bitgo bitis bitit bitru bitti bitto bitts bo-bo bobbi bobos bobr bobri bobst bobts boggs bogor bogos bogot bogu bogur bogus bogut boios boiro boist boito boobs booit boors boort booru boost boots borbo borgo borgs borgu borio boris boro- boroo boros borot borou borro borsi borst borsu borts borus borut bosio bosor bossi bosso bosut botis botos botou botro botti botts bottu botus bourg bouri bours boust bouto bouts brigg brigi brigs briot briou brisb brisi briss brist brito brits britt brobo brobs brogs broos bross broto brous brout brrrr brugg bruis bruit bruiu bruri bruss brust bsous btr-t btstu bugis bugit bugoo bugti buist burbs burgi burgo burgs burgu burio buroo buros burri burro burrs burru burst burts burtt burus burut busir busog busot busso bussu busti busto busts busur busut busuu butis butit buto- butor butot butou butts butuo butut gbiti ggobi gibbi gibbs gibi- gibss gibus giggs gigot giitu giour giros girru girss girst girsu girts girus gisgo gissi gisti gists gitgo gitig gitit giubo giust go-go go-oo go-to gobbi gobbo gobig gobio gobir gobos gobot gobus gogoi gogos gogro gogui goibo goist goito goits goobi goobo googs goost goout gorgo gorir goris gorst gossi gosub gotit gotoo gotor gotos gotri gotti gotto gotts gotur gours goust gouts grgur grigg grigs griot grisi griss grist grisu grits grogg grogs groit groos groot grosi gross grost grosu grots grott grout grrrr grubb grubs gruit gruiu gruss grust gruts gruut gsuit gtrot gtsss gubbi gubbo gubio gubos gubru guggi gugir guibs guiot guiri guiro guiss guist gurgi gurit guroo guros gurro gursu gurts gurur gurus gusii gusti gusto gusts gustu gutti i-bot ibbur ibibo ibogo ibros igbos iggri igigi igors igort igosi igoto igros iiiii iiris iisir iitti iobit ioooi ioooo iorio iotit iotti irbis irbit irios iris- iriss irisu irobo irori irour irous irrit irssi is-is isbut isios isiro isisi isiti isits isitt isour isout isrib issor issou issru issus issuu istoo istus isuto isuus itbig itbit itigi itisi itiso itobi itoss itour itout itsit itsso itsto itsus ittoo ittti itu-r itu-t ituri ituro ituru itutu o-r-b obits oboro obosi obout obtus og-os ogiri ogogo ogors ogugu oguri oirot oitti oobit ooioo ooooo ootus orbis orbit orbot orbus oribi origi origo orist orito orits orius orobo orosi oroso orost orosu orout orrgo orris orsis orsit ortoo oruro orust orutu osgur ososo ossi- ossis ossos ossur ostir ostis ostri ostro osubi osusu otisb otobi otori otoso ototo otour otros ottir ottis ottoi ottos ottur oubit oubut ouigo ouir- ouoro ousts outgo outgs outis outro outto outts ribbi ribo- ribot rig-i riggs rigio rigor rigot riisu riots risgo risso risti risto risus risut ritsu ritts ritus ro-ro robbi robbo robbs robo- robor robot robrt robur rogoi roiot roist roosi roost roots rorbu rorts rosis rossi rosso rosss rosto rosts rosu rotis roto- rotor rotos rotot rotti rotto roubt roust routs routt rsust rubbi rubio rubis rubor rubus rugii rugir ruiru ruoti rusio rusor rusot russi russo rusts rustu rutog ruutu s-bot s-bus s-iii s-o-r sibir sibiu sibor sibos sibot sibsu sibur sibut sigir sigri sigur sigus siirt siogo