ffff ffii ffrr ffss fiff fifi fifo fiii fini finn fino fins fion fior fios firn firs fisi fiss fnrs fofo foin fois fono fons foof foon foos for- fori forn foro forr fors fosi foso foss frin frio fris frns fron fros frso fsfi fsfo fssf i-no ifis ifni ifno ifnr ifns ifor ifrf ifri ifso iiii iiio iiis iino iioi iioo iios iirs iisi iisr infi info infs inis inni inno innr inns ino- inoi inon inor inos inri inro inrs inso inss ioii ioio ioni ionn iono ions ioof iooi iooo ioos iori iors ioso iri- irin irio iris iron irri irrs irsf isin isis isno iso- isof ison isor isos isri issf issi isso issr isss n-ii nfff nfon nfrs nfsr niff niir nini nino nins nion nioo nios niro nirs nisi niso niss nnnn nnos nnss nofi noif noin noio noir nois non- noni nonn nono nons noo- noon nooo noor noos nor- norf nori norn noro norr nors nos- noss nron nsfs nsin nsis nsnr nsof nsos nssf nsso nssr nsss off- offo offr offs ofno ofor oiii oins oion oios onir onis onni onno onon onor onos onso ooff oofs oons oooo ooos oosi orff orfi orfs ori- orif orin orio oris orni orno orns oro- orof oron oror oros orri orro orrs orsi orso osii osin osis osno osnr osoi osoo osor osos osro ossi osso riff rifs riif riin riis rinf rinn rino rion rios riri rirs risi riso riss rnin roff rofo roif roin roio roir rois roni rono rons roof rooi roon roor roos rori roro rosi roso ross rrif rrrr rsis rsnn rsno rsnr rsos s-ii s-os sfio sfor sfos sfro sfss siff sifo sifr sini sinn sino sins sion sior sios sirf siri siro sirr sirs sisi siss snir snns snoo snor snos snrs sofi sofo soif soin soir sois son- soni sono sons soof soon soor soos sori sorn soro sorr sors sosi soso soss srfi sris srni srnn srno sros ssin ssis ssns ssri ssrs sssf sssi ssss