ffff ffps ffss fftf fmss fspf fssf fssp ftps fuff fufu fums fuss fust fusu futs futu mfps mftf mmff mmmm mmms mmpu mmst mmsu mmts mmus mpfs mppf mppp mpps mpst mptp msff msfs msft msmm msms msmu mspp mssf mssm mssp msst mstp msts msus mtff mtss mtst mtts muff mufu mumm mump mums mumu mups muss must musu muts mutt mutu muut pfff pfft pfps pmmp pmmu pmpm pmsf pmts pmut ppms pppp ppps ppsf ppss ppts pptt psfs pspp psps pssm psst psts pstu ptmp ptms puff puft pump pups pupu puss pust put- puts putt putu sfmm sfss sfsu sftp sfts smps smsp smss smtp smtu smus smut spfs spms spmt sppf spps spsp spss spst spts spus sput ssfp sspf ssps sspt sssf sssm ssss sstp ssts stfu stmp stms stmt stpf stpp stps stsf stsm stss stuf stum stup stus stut suf- suff sufs sufu sum- sump sums sumu sup- supp sups supt sus- susp suss sust susu sutu suum suus tfpt tfss tftp tmps tmsp tmtt tpms tpmt tppp tptp tput tsfm tsmp tsps tspt tssf tssm tsst tstm tsts tsum tsup ttff ttms ttss tttt tuff tufm tuft tufu tump tums tumu tups tupu tusm tuss tust tuts tutt tutu tuum ufms uftp umff umms umps umsp umsu umts umus umut uppp uppu upup usfs usmm usmp usms uspp usps ussf usss usst ussu ustm ustp usts usus utmp uttu uutf uuuu