ffff ffii ffss ffun fiff fifi fiii fini finn fins fisi fiss fisu fnuf fsfi fssf fuff fufu funf funs fusi fuss fusu ifis ifni ifns iiii iiis iisi iisu infi infs inis inni inns innu inss insu inui inun inus isin isis issf issi isss issu isus iuiu iuss n-ii nfff nfsu niff niiu nini nins nisi niss nisu nnnn nnss nsfs nsin nsis nssf nsss nuff nuin nunn nuns nusi nuss nusu s-ii sfss sfsu siff sifu sini sinn sins sinu sisi siss sisu siui sius snfu snns snus ssin ssis ssns sssf sssi ssss suf- suff sufi sufs sufu suin suis sun- suni sunn suns sunu sus- susi suss susu suus uni- unif unii unin unis unni unns uns- unus usfi usfs usif usin usis usnu ussf usss ussu usui usun usus uuni uusi uuuu