-ous ffff ffps ffss fftf floo flop flos flot flou flts fluf fluo flus fofo foll folo fols folt foof fool foos foot fopp fops foso foss fost foto fotp fots fott foul foup fous fout fsfo fspf fssf fssp ft-l ftop ftos ftps fuff fufu full fuls fulu fuso fuss fust fusu futo futs futu lftp lfts llll lloo llps loff loft loll lolo lols loof lool loop loos loot lopp lops lopu loso losp loss lost lotl loto lots lott loul loup lous lout louu lpfp lpft lppl lpss lsof lspl lsso lssp lsts ltps ltsp luff luft lufu lull lulu lupo lupu luso luss lust luts luup off- offo offs offu ofst oftp ofus olfs ollo olof olos olot olst oltu ooff oofs oolo oooo ooos oops oost ootp oots oous opls opo- opos oppo opps opsu opto opts opus oslo osoo osos osso ossu osts osul otfp oto- otof otoo otos otpp otso otsu otto otts ottu otus ouff ouls oulu oust out- outo outs ouu- pfff pfft pfps plff ploo plop plos plot plou plpp plss pltf pltt plup plus poff poll polo pols polt polu poof pool poop poos poot pop- popo popp pops popt poso poss post potf poto pots pott potu pouf poul poup pous pout pplo ppos pppo pppp ppps ppsf ppss ppts pptt psfs psol psos psou pspp psps psso psst psts pstu ptol ptop puff puft pull pulo pulp puls pult pulu pupl pups pupu puss pust put- puto puts putt putu s-os sfls sfos sfss sfsu sftp sfts slft sllp sloo slop slos slot slpp slps slst slsu slts slup slut sofo soft solf soll solo solp sols solt soof sool soop soos soot sopo sopp sops sopu soso soss sost sotl soto sotp sots sotu souf soul soup sous sout spfs splo splp spls spoo spop spos spot sppf spps spso spsp spss spst spto spts spus sput ssfl ssfp sslp sslt ssop ssot sspf sspl sspo ssps sspt sssf ssss sstl sstp ssts stfu stlo stlt stof stol stoo stop stos stot stou stpf stpp stps stsf stss stuf stul stup stus stut suf- suff sufs sufu sul- sulf sull sulo sulp sult sulu suos sup- supo supp sups supt sus- suso susp suss sust susu suto sutu suus tfot tfpt tfss tftp tlos toff tofo toft tofu tol- toll tolo tolt tolu toof tool toos toot top- topf topo topp tops topt topu toso toss tost tosu toto tots tott toul toup tous tout tpls tpol tppp tptp tput tsfl tsol tsop tsos tsou tspo tsps tspt tssf tsst tsts tsup ttff ttop ttss tttt ttul tuff tufo tuft tufu tull tulo tulp tulu tuos tupo tups tupu tuss tust tutl tuto tuts tutt tutu tuuo ufos uftp ulft ullo ulo- ulos ulto ults ultt ulul ulus uofl uofo uplo upos uppp uppu uptl upto upup usfl usfs uslp uslu usos uspo uspp usps ussf usss usst ussu usto ustp usts usul usus utfo utsl utto uttu uulu uutf uuuu