-ous ffff ffss fftf floo flos flot flou flts fluf fluo flus fofo foll folo fols folt foof fool foos foot foso foss fost foto fots fott foul fous fout fsfo fssf ft-l ftos fuff fufu full fuls fulu fuso fuss fust fusu futo futs futu lfts llll lloo loff loft loll lolo lols loof lool loos loot loso loss lost lotl loto lots lott loul lous lout louu lsof lsso lsts luff luft lufu lull lulu luso luss lust luts off- offo offs offu ofst ofus olfs ollo olof olos olot olst oltu ooff oofs oolo oooo ooos oost oots oous oslo osoo osos osso ossu osts osul oto- otof otoo otos otso otsu otto otts ottu otus ouff ouls oulu oust out- outo outs ouu- s-os sfls sfos sfss sfsu sfts slft sloo slos slot slst slsu slts slut sofo soft solf soll solo sols solt soof sool soos soot soso soss sost sotl soto sots sotu souf soul sous sout ssfl sslt ssot sssf ssss sstl ssts stfu stlo stlt stof stol stoo stos stot stou stsf stss stuf stul stus stut suf- suff sufs sufu sul- sulf sull sulo sult sulu suos sus- suso suss sust susu suto sutu suus tfot tfss tlos toff tofo toft tofu tol- toll tolo tolt tolu toof tool toos toot toso toss tost tosu toto tots tott toul tous tout tsfl tsol tsos tsou tssf tsst tsts ttff ttss tttt ttul tuff tufo tuft tufu tull tulo tulu tuos tuss tust tutl tuto tuts tutt tutu tuuo ufos ulft ullo ulo- ulos ulto ults ultt ulul ulus uofl uofo usfl usfs uslu usos ussf usss usst ussu usto usts usul usus utfo utsl utto uttu uulu uutf uuuu