otif otin otis otit oto- otof oton otoo otos otso otsu otti otto otts ottu otus oucc oudc ouds oufc ouff ouii ouin ouis ouit oun- ound ousd oust out- outi outo outs ouu- s-ic s-ii s-os sccc sccs scct scdc scdf scds scfc scfi sci- scic scid scif scin scio scis scit scnd scnt scon scoo scot scsc scsd scsi scsn scso scst scsu sctc sctd sctn scto scts scud scun scut sdcc sdco sddc sdds sdfc sdic sdif sdio sdot sdsc sdsf sdss sdsu sfcc sfco sfcs sfdc sffc sfio sfnt sfos sfss sfsu sfts sicc sici sico sics sicu sidd sidi sido sids siff sifo sift sifu siit sind sini sinn sino sins sint sinu siod sion sios siot siou sisc sisd sisi siss sist sisu sit- sitc sitd siti sitn sito sits sitt situ siui sius siut sncc sncf snco snfu snid snit snns snoc snod snoo snos snot snsd snus soci soco socs sodd sodo sods sodu sofi sofo soft soic soif soin sois soit son- sond soni sono sons sont sonu sood soof soon soos soot sosi soso soss sost sotc sotn soto sots sotu soud souf soun sous sout sscc ssci sscs ssdc ssdd ssdf ssfc ssid ssin ssis ssit ssns ssoc ssot sssc sssf sssi ssss sstc sstd ssts stcc stcs stcu stds stfc stfn stfu stic stid stif stio stis stit stnd stnn stns stod stof ston stoo stos stot stou stsf stsi stss sttc sttd stuc stud stuf stun stus stut suc- succ suci sucs sudd sudi sudo suds suf- sufc suff sufi sufs sufu suid suin suio suis suit sun- sund suni sunn suno suns sunt sunu suos sus- susd susi suso suss sust susu suti suto sutu suus tccc tccu tcdd tcfc tcnn tcon tcos tctc tcts tdff tdis tdss tfcu tfdc tfin tfot tfsd tfsi tfss tftc ticc tico tics tidc tidd tids tiff tifo tift tiit tiiu tinc tind tini tinn tino tins tint tinu tion tios tiou tisi tiso tiss tist titc titi tito tits titt titu tncc tndd tndf tnfc tnts tnut toci toco todd todi todo tods todt todu toff tofi tofo toft tofu toid tois toit toni tonn tono tons tonu tood toof toon toos toot tosc tosi toso toss tost tosu totc totd toti toto tots tott toui toun tous tout tscc tsfc tsid tsin tsis tsoi tsos tsou tssf tssi tsst tstc tsts tsui tsun ttcn ttfc ttff ttfn tton ttss tttt tucc tuco tudi tudu tufc tuff tufi tufo tuft tufu tuin tuis tuit tuiu tunc tund tuni tunn tuno tuns tunu tuos tusc tusd tusi tuss tust tuti tuto tuts tutt tutu tuuo ucci ucdc ucdd ucin ucio ucon ucos ucsc ucsd ucsf ucst ucsu ucut uddi udds udic udid udin udon udoo udos udot udsd udts udun ufcu ufos uint uisd uist uits uncc uncf unci unco uncs unct undi undo unds unfd uni- unic unif unii unin unio unis unit unni unno unns unon unos uns- unsc unso unst unto unts unus unut uocc uofo uscc uscf usco uscs usdc usdf usdo usds usdt usfc usfi usfs usif usin usis usnc usno usnu usoc usoi usos ussc ussf usss usst ussu ustc usti usto usts usui usun usus utfo utid utin utis utsc utti utto uttu uuni uuno uuoc uusi uutf uuuu