otso otta otte otto otts raaf raas raat rac- raca racc race raco racs ract raec raef raer raes rafa rafc rafe raff raft raoc raos rara rare rarf raro rars rasa rasc rase raso rass rast rata rate ratf rato rats ratt rcac rcaf rcas rccc rccs rcet rcfc rcos rcsa rcsc rcss rctc rcts rea- reac reae reaf reao rear reas reat reca recc rece recr recs rect reef rees reet refe reff refr refs reft reof reos reot rera rere rero rers rert resa rese reso ress rest reta rete reto retr rets rett rfae rfef rffc rftc roaf roar roas roat roca rocc roce roco rocs roea roer roes roet rofc rofe roff rofo roof roor roos root rora rorc rore roro rort rosa rosc rose roso ross rost rota rotc rote roto rotr rots rott rras rrat rrfc rrrr rsaa rsaf rscc rscs rsee rsfc rsos rsre rssa rsts rtas rtca rtcc rtce rtee rtes rtfc rtss rtts s-os sa-c saac saae saaf saar saas saat saca sacc sace saco sacr sacs sact saer saes safa safc safe saff safo safr saft saor saos sara sarc sare sarf saro sarr sars sart sasa sasc sase sasf saso sass sast sata satc sate sato satr sats satt scaa scac scaf scar scas scat sccc scce sccs scct scea scec scee scer scet scfa scfc scfe scoo scor scot scr- scra scrc scre scrs scsa scsc scso scsr scst sctc scto sctr scts se-c se-e se-f se-o se-s se-t seaa seac seaf sear seas seat sec- seca secc sece seco secr secs sect seea seec seef seer sees seet sefa seff seft seoc sera serc sere serf sero serr sers sert sesa sesc sese seso sess sest set- seta setc sete setf seto sets sett sfar sfas sfca sfcc sfco sfcs sfer sffc sfor sfos sfra sfrc sfro sfss sfts soar soas soat soca soce soco socr socs soea soec soeo soes sofa sofo soft soof soor soos soot sora sore soro sorr sors sort sosa sose soso soss sost sota sotc sote soto sots sraf sras srcc srct srec sreo sres srfc sros srta srtr ssaa ssac ssao ssas ssat ssca sscc ssce sscs ssec ssee sses sset ssfc ssoc ssot ssra ssrc ssrs sssa sssc sssf ssss ssta sstc ssts stac stae star stas stat stca stcc stcs stea stec stee stef steo ster stes stet stfc stoa stoe stof stoo stor stos stot stra strc stre stro strs stsf stss sttc sttr taa- taaf taar taas taat taca tacc tace taco tacs tact taec taer taes tafa tafc tafe taff tafo taft taoa taor taos tara tarc tare tarf taro tarr tars tart tasa tasc tase tasr tass tast tata tate tato tatr tats tatt tcca tccc tcfc tcos tctc tcts teac tear teas teat teca teco tecr tecs tect teec teef teer tees teet tefc teff teft teor teos ter- tera terc tere terf tero terr ters tesa tesc tese teso tess test teta tete teto tetr tets tett tfae tfca tfec tfot tfrs tfss tftc toas toat toca toce toco toea toee toer toes toet tofa toff tofo toft tooa toof toor toos toot tora torc tore torf toro torr tors tort tosa tosc tose toso toss tost tota totc tote toto totr tots tott traa trac trae traf trao tras trat trca trcc tre- trea trec tree tref treo tres tret trfc trfr troa troc troe troo tros trot trra trst trtc trte trtr tsaa tsao tsar tsat tsca tscc tsec tses tset tsfc tsos tssa tsse tssf tssr tsst tstc tsts tteo tter ttfa ttfc ttff ttoe ttss tttt