iiii iiis iisi iisp iisu inis inni inns innu inp- inpi inpp insp inss insu inui inun inup inus ipin ipsi ipsp ipss ipus isin isis isps issi issp isss issu isup isus iuiu iupp iuss n-ii n-up niip niiu nini nins nips nisi nisp niss nisu nnnn nnpi nnss npin npss nsin nsis nspi nsps nssp nsss nuin nunn nuns nups nusi nuss nusu piip pini pinn pinp pins pinu pipi pipp pips pisi piss pisu pius pnin pnpp pnup pppn pppp ppps ppss psip psis psni pspi pspp psps puin puis puiu puns punu pupi pups pupu pusi puss s-ii sini sinn sinp sins sinu sipi sipp sips sisi siss sisu siui sius snip snns snpp snus spin spip spis spns spps spsp spss spui spun spus ssin ssis ssns ssps sssi ssss suin suis sun- suni sunn suns sunu sup- supp sups sus- susi susp suss susu suus uipi uni- unii unin unis unni unns unps uns- unus upin upis upnp uppp uppu upsi upup usin usip usis usnu uspp usps usss ussu usui usun usus uuni uusi uuuu