ffff ffii ffss fiff fifi fifo fiii fini finn fino fins fion fios fisi fiss fofo foin fois fono fons fony foof foon foos fosi foso foss foyn foys fsfi fsfo fssf fyfi fynn i-no iffy ifis ifni ifno ifns ifso ifyo iiii iiio iiis iino iioi iioo iios iisi infi info infs infy inis inni inno inns inny ino- inoi inon inos inso inss inyo ioii ioio ioni ionn iono ions ioof iooi iooo ioos ioso isin isis isno iso- isof ison isos issf issi isso isss issy isys iyos n-ii nfff nfon niff nini nino nins nion nioo nios nisi niso niss niyi nnnn nnos nnss nofi noif noin noio nois non- noni nonn nono nons noo- noon nooo noos nos- noss nosy noyo noys nsfs nsin nsis nsof nsos nssf nsso nsss nyny nyon nysf nyss off- offo offs offy ofno oiii oins oion oios onis onni onno onon onos onoy onso onys ooff oofs oofy oons oooo ooos oosi osii osin osis osno osny osoi osoo osos ossi osso ossy oyns oyon oyss s-ii s-os sfio sfos sfss siff sifo sify sini sinn sino sins siny sion sios sisi siss sisy siyi snns snoo snos snsy snys sofi sofo soif soin sois son- soni sono sons sony soof soon soos sooy sosi soso soss soyo soys ssin ssis ssns sssf sssi ssss syff syfy syis syn- syns syny syon syso syss yiff yins yiss ynon yoff yoni yono yons yoof yoon yosi yoso yoyn yoyo ysii yson yyff yyyy