iiii iiis iiit iisi iisp iist iisu iitt inis init inni inns innu inp- inpi inpp inpt insp inss inst insu inti intn intp ints intu inui inun inup inus ipin ipsi ipsp ipss ipts ipus iput isin isis isit isnt isps issi issp isss issu isti istp ists isup isus itin itis itsi itsp itsu itup iuiu iupp iuss iust n-ii n-up niip niit niiu nini nins nips nipt nisi nisp niss nist nisu niti nits nnit nnnn nnpi nnss nntn npin npss nptn nsin nsis nspi nsps nssp nsss nstp nsts nstu ntis ntnu ntss ntsu ntui nuin nuit nunn nuns nunt nups nusi nuss nust nusu nuts nutt nutu piip pini pinn pinp pins pint pinu pipi pipp pips pisi piss pist pisu piti pits pitt pitu pius pnin pnpp pnup pppn pppp ppps ppss pptn ppts pptt psip psis psni pspi pspp psps psst psts pstu ptui puin puis puit puiu puns punt punu pupi pups pupu pusi puss pust put- puti puts putt putu s-ii siit sini sinn sinp sins sint sinu sipi sipp sips sipt sisi siss sist sisu sit- siti sitn sits sitt situ siui sius siut snip snit snns snpp snus spin spip spis spit spns spps spsp spss spst spts spui spun spus sput ssin ssis ssit ssns ssps sspt sssi ssss sstp ssts stip stis stit stnn stns stpp stps stsi stss stun stup stus stut suin suis suit sun- suni sunn suns sunt sunu sup- supp sups supt sus- susi susp suss sust susu suti sutu suus tiit tiiu tini tinn tins tint tinu tip- tipi tipp tips tipt tipu tisi tiss tist titi titp tits titt titu tnsp tnts tnut tppp tptp tput tsin tsis tspn tsps tspt tssi tsst tsts tsui tsun tsup ttss tttt tuin tuis tuit tuiu tuni tunn tuns tunu tupi tups tupu tusi tuss tust tuti tuts tutt tutu uint uipi uist uits uni- unii unin unis unit unni unns unps uns- unst unts unus unut upin upis upnp uppp uppu upsi upup usin usip usis usnu uspp usps usss usst ussu usti ustp usts usui usun usus utin utis utti uttu uuni uusi uuuu