ffff ffrr ffss fmno fmsr fmss fnrs fofo fomo fono fons foof foom foon foos for- form forn foro forr fors foso foss frmn frns from fron fros frsm frso fsfo fssf mfor mfrs mmff mmmm mmms mmor mmrf mnos moff mofo momo moms mon- monn mono mons moon moor moos morf morn moro mors moso moss mron msff msfs msmm msms mson msor mssf mssm mssr nfff nfon nfrs nfsm nfsr nmff nmfs nmon nmos nnnn nnos nnss nom- nomo noms non- nonn nono nons noo- noon nooo noor noos nor- norf norm norn noro norr nors nos- nosm noss nron nsfs nsnr nsof nsos nssf nsso nssr nsss off- offo offr offs ofno ofor omn- omo- omon omoo omor omro omsn onno onon onor onos onso ooff oofs ooms oons oooo ooos orff orfs ormn ormo orno orns oro- orof orom oron oror oros orro orrs orso osm- osmo osno osnr osoo osor osos osro osso rmon roff rofo romm romo roms rono rons roof room roon roor roos roro roso ross rrrr rsnn rsno rsnr rsos s-os sfmm sfor sfos sfro sfss smof smon smos smrf smsn smss snns snom snoo snor snos snrs sofo somm somn somo son- sono sons soof soom soon soor soos sorm sorn soro sorr sors soso soss srnn srno sros ssns ssrm ssrs sssf sssm ssss