-ous ffff ffss fftf floo flos flot flou floy flts fluf fluo flus fluy flys flyt fofo foll folo fols folt foly foof fool foos foot foso foss fost foto fots fott foty foul fous fout foyl foys foyt fsfo fssf ft-l ftfy ftos fuff fufu full fuls fulu fuso fuss fust fusu futo futs futu fuyl fuyt fuyu lfts llll lloo loff loft loll lolo lols loly loof lool loos loot loso loss lost losy lotl loto lots lott loul lous lout louu loys lsof lsso lsts luff luft lufu lull lulu luso luss lust luts luys luyt lyff lyft lyfy lyly lyo- lyot lys- lysl lyso lyss lyst lyto lytt lyyf off- offo offs offu offy ofst ofus olfs ollo olly olof olos olot olst oltu olyf ooff oofs oofy oolo oooo ooos oost oots ooty oous oslo osoo osos osso ossu ossy osts osul osyt oto- otof otoo otos otoy otso otsu otto otts ottu otus ouff ouls oulu oust out- outo outs outy ouu- oyls oyly oyou oyss oyst s-os sfls sfos sfss sfsu sfts slft sloo slos slot sloy slst slsu slts slut slys sofo soft solf soll solo sols solt soly soof sool soos soot sooy soso soss sost sotl soto sots sotu souf soul sous sout soyo soys soyt ssfl sslt ssot sssf ssss sstl ssts stfu stlo stlt stof stol stoo stos stot stou stoy stsf stss stuf stul stus stut stuy styf styl stys suf- suff sufs sufu sul- sulf sull sulo sult sulu suos sus- suso suss sust susu susy suto sutu suty suus suyo suyu syff syfy syl- syll syls sylt syso syss syst sytt tfot tfss tlos to-y toff tofo toft tofu tol- toll tolo tolt tolu toly toof tool toos toot toso toss tost tosu tosy toto tots tott toty toul tous tout toyl toyo toys toyt tsfl tsol tsos tsou tsoy tssf tsst tsts tsys ttff ttoy ttss tttt ttul ttyl ttys tuff tufo tuft tufu tull tulo tulu tuly tuos tuss tust tutl tuto tuts tutt tutu tuty tuuo tuyl tuys tyff tyft tyl- tyll tylo tyss tyst tyto tytt tyty tyus ufos ulft ullo ully ulo- ulos ulto ults ultt ulul ulus ulys uofl uofo usfl usfs uslu usos ussf usss usst ussu ussy usto usts usul usus utfo utoy utsl utto uttu uulu uutf uuuu uyts ylls yoff yoll yolo yoly yoof yool yoot yoso yost yott youf youl yous yout yoyo yssu yuff yuft yufu yulo yuls yulu yust yuto yutu yuty yuyu yyff yyyy