ffff ffii ffss fiff fifi fifo fiii fini finn fino fins fion fios fisi fiss fofo foin fois fono fons foof foon foos fosi foso foss fsfi fsfo fssf i-no ifis ifni ifno ifns ifso iiii iiio iiis iino iioi iioo iios iisi infi info infs inis inni inno inns ino- inoi inon inos inso inss ioii ioio ioni ionn iono ions ioof iooi iooo ioos ioso isin isis isno iso- isof ison isos issf issi isso isss n-ii nfff nfon niff nini nino nins nion nioo nios nisi niso niss nnnn nnos nnss nofi noif noin noio nois non- noni nonn nono nons noo- noon nooo noos nos- noss nsfs nsin nsis nsof nsos nssf nsso nsss off- offo offs ofno oiii oins oion oios onis onni onno onon onos onso ooff oofs oons oooo ooos oosi osii osin osis osno osoi osoo osos ossi osso s-ii s-os sfio sfos sfss siff sifo sini sinn sino sins sion sios sisi siss snns snoo snos sofi sofo soif soin sois son- soni sono sons soof soon soos sosi soso soss ssin ssis ssns sssf sssi ssss