ffff ffrr ffss flom floo flor flos fmsr fmss fofo foll folo folr fols fomo foof fool foom foos for- forl form foro forr fors foso foss frol from fros frsm frso fsfo fssf lfmr llll llms lloo lmfm lmmr lmms lmrs lmsr loff loll lolo lols lomm lomo loms loof lool loom loor loos loro lors loso loss lrrr lrsm ls-r lsof lsso lssr mfor mfrs mlrs mlss mmff mmmm mmms mmor mmrf moff mofo moll molo molr mols momo moms mool moor moos morf morl moro mors moso moss mrls mrml mrsl msff msfs msml msmm msms msol msor mssf mssm mssr off- offo offr offs ofml ofor olfs ollo olmo olms olof olom olor olos omo- omoo omor omro ooff oofs oolo ooms oooo ooos orff orfs orlo ormo oro- orof orom oror oros orro orrs orso oslo osm- osmo osoo osor osos osro osso rffl rlls rlml rlms rmll roff rofl rofo rolf roll rolm rolo romm romo roms roof rool room roor roos roro roso ross rrrr rsml rsos rssl s-os sfls sfmm sfor sfos sfro sfss sllm slmm sloo slos slrs smls smof smol smos smrf smss sofo solf soll solo solr sols soml somm somo soof sool soom soor soos sorm soro sorr sors soso soss sros ssfl ssml ssrl ssrm ssrs sssf sssm ssss