-ism ffff ffii ffrr ffss fiff fifi fifm fifo fiii fimo fimr fior fios firm firs fisi fism fiss fmri fmsr fmss fofo fois fomo foof foom foos for- fori form foro forr fors fosi foso foss frim frio fris from fros frsm frso fsfi fsfo fsim fssf ifim ifis ifor ifrf ifri ifso iiii iiio iiis iioi iioo iios iirs iisi iism iisr imfi imir immi immo imms imof imri imro imrr imsf imsi imso imsr imss ioii ioio iomo ioof iooi iooo ioos iori iors ioso irfm iri- irio iris irmo irms irri irrs irsf isim isis ismi ismo isms iso- isof isor isos isri issf issi isso issr isss mfor mfri mfrs miff mifi miii miio miis mim- mimi mimo mims mio- mios miri miro mirr mirs mis- misi miso misr miss mmff mmii mmis mmmm mmms mmor mmrf moff mofo moif moii moio moir mois momi momo moms moor moos morf mori moro mors mosi moso moss mris mrsi msff msfs msmm msms msor mssf mssi mssm mssr off- offo offr offs ofor oiii oios oism omim omio omis omo- omoi omoo omor omri omro omsi ooff oofs ooms oooo ooos oosi orff orfi orfs ori- orif orio oris ormo oro- orof orom oror oros orri orro orrs orsi orso osii osim osis osm- osmo osoi osoo osor osos osro ossi osso riff rifs riif riis rimi rimm rimo rims riom rios riri rirs risi rism riso riss rmif roff rofo roif roio roir rois romi romm romo roms roof rooi room roor roos rori roro rosi roso ross rrif rrrr rsis rsos s-ii s-os sfio sfmm sfor sfos sfro sfss siff sifo sifr siim simi simm simo sims sior sios sirf siri siro sirr sirs sisi siss smif smis smof smos smrf smss sofi sofo soif soim soir sois somi somm somo soof soom soor soos sori sorm soro sorr sors sosi soso soss srfi srim sris sros ssis ssri ssrm ssrs sssf sssi sssm ssss