-ous ffff ffps ffss fftf fofo foof foos foot fopp fops foso foss fost foto fotp fots fott foty foup fous fout foys foyt fsfo fspf fssf fssp ftfy ftop ftos ftps fuff fufu fuso fuss fust fusu futo futs futu fuyt fuyu off- offo offs offu offy ofst oftp ofus ooff oofs oofy oooo ooos oops oost ootp oots ooty oous opo- opos oppo opps oppy opsu opsy opto opts opus osoo osos osso ossu ossy osts osyp osyt otfp oto- otof otoo otos otoy otpp otso otsu otto otts ottu otus ouff oust out- outo outs outy ouu- oyou oyss oyst pfff pfft pfps poff poof poop poos poot pop- popo popp pops popt popy poso poss post posy potf poto pots pott potu poty pouf poup pous pout pouy poyo poys ppos pppo pppp ppps ppsf ppss ppts pptt psfs psos psou pspp psps psso psst psts pstu psy- psys ptop puff puft puoy pups pupu pupy puss pust put- puto puts putt putu puy- puyo puys puyt pyo- pyos pyot pypy pyss pyst pytt s-os sfos sfss sfsu sftp sfts sofo soft soof soop soos soot sooy sopo sopp sops sopu sopy soso soss sost soto sotp sots sotu souf soup sous sout soyo soys soyt spfs spoo spop spos spot spoy sppf spps spso spsp spss spst spto spts spus sput spy- spys ssfp ssop ssot sspf sspo ssps sspt sssf ssss sstp ssts stfu stof stoo stop stos stot stou stoy stpf stpp stps stsf stss stuf stup stus stut stuy styf stys suf- suff sufs sufu suos sup- supo supp sups supt supy sus- suso susp suss sust susu susy suto sutu suty suus suyo suyu syff syfy sypo syso syss syst sytt tfot tfpt tfss tftp to-y toff tofo toft tofu toof toos toot top- topf topo topp tops topt topu toso toss tost tosu tosy toto tots tott toty toup tous tout toyo toys toyt tppp tptp tput tpyo tsop tsos tsou tsoy tspo tsps tspt tssf tsst tsts tsup tsys ttff ttop ttoy ttss tttt ttys tuff tufo tuft tufu tuos tupo tups tupu tupy tuss tust tuto tuts tutt tutu tuty tuuo tuys tyff tyft typ- typo typp typy tyss tyst tyto tytt tyty tyup tyus ufos uftp uofo upos uppp uppu uppy upsy upto upup usfs usos uspo uspp usps ussf usss usst ussu ussy usto ustp usts usus utfo utoy utto uttu uutf uuuu uyts yoff yoof yoop yoot yopo yopy yoso yost yott youf youp yous yout yoyo yput ysop yssu yuff yuft yufu yups yust yuto yutu yuty yuyu yyff yyyy