n-up nnnn nnss nntn npss nptn nsps nssp nsss nstp nsts nstu ntnu ntss ntsu nunn nuns nunt nups nuss nust nusu nuts nutt nutu pnpp pnup pppn pppp ppps ppss pptn ppts pptt pspp psps psst psts pstu puns punt punu pups pupu puss pust put- puts putt putu snns snpp snus spns spps spsp spss spst spts spun spus sput ssns ssps sspt ssss sstp ssts stnn stns stpp stps stss stun stup stus stut sun- sunn suns sunt sunu sup- supp sups supt sus- susp suss sust susu sutu suus tnsp tnts tnut tppp tptp tput tspn tsps tspt tsst tsts tsun tsup ttss tttt tunn tuns tunu tups tupu tuss tust tuts tutt tutu unns unps uns- unst unts unus unut upnp uppp uppu upup usnu uspp usps usss usst ussu ustp usts usun usus uttu uuuu