mmmm mmms mmor mmst mmts momo moms moor moos moot moov moro mors mort moso moss most motm moto mots mott movt mrtm mrts mrtt msmm msms msor msrt mssm mssr msst mstr msts msvs mtom mtor mtrr mtss mtst mttr mtts mtvr mtvs mvtr omo- omoo omor omov omro ooms oooo ooos oort oost oots ormo oro- orom oror oros orot orro orrs orso orto orts orvr orvs osm- osmo osoo osor osos osov osro osso ostr osts oto- otoo otor otos otov otro otrs otso otto otts ovms ovo- ovoo ovot rmmv rmst romm romo roms room roor roos root roro rort roso ross rost roto rotr rots rott rovo rovs rrrr rsmv rsos rsts rtms rtss rtts s-os s-vt smos smot smrt smss somm somo soom soor soos soot sorm soro sorr sors sort soso soss sost sosv sotm soto sots sovo sovs sros srtr srtv ssot ssrm ssrs sssm ssss ssts ssvm st-v stms stmt stom stoo stor stos stot stro strs stsm stss sttr stvs svor svtr t-mo tmos tmro tmtt tomm tomo toms tomt toom toor toos toot torm toro torr tors tort torv toso toss tost totm toto totr tots tott tovo trms trom troo tros trot trst trtr trvs tsom tsos tssm tssr tsst tstm tsts ttms ttss tttt tvmt tvos tvro tvrr tvss tvtv vmos voms voom voor voot vor- vorm voro vors vort voso voss voto vrms vrot vrto vsto vtrs vvvv