bbbb bbbs bmop bmpt bmts bobb bobo bobs bomb bomp boms bomt boob boom boop boos boot bopp bops bosm boso boss bost botb boto bots bott bpms bpot bsms bsmt bsos bspp bssm bsts btbp btob btps btss bttb mbbs mbms mbps mmmm mmms mmst mmts mobb mobo mobs momo moms moob moop moos moot mopp mops moso moss most motb motm moto mots mott mppp mpps mpst mptp msmb msmm msms msop mspb mspp mssm mssp msst mstp msts mtbo mtbs mtom mtss mtst mtts obbo obos obot obss obst obts ombo omo- omoo omps ompt ooms oooo ooos oops oost ootb ootp oots opms opo- opos oppo opps opsm opto opts osbp osm- osmo osoo osos ospm ossb osso osts otbs oto- otoo otos otpp otso otto otts pbsp pmmp pmos pmpm pmpo pmts pobo pobs pomo pomp poms poop poos poot pop- popo popp pops popt posb poso poss post poto pots pott ppms ppos pppo pppp ppps ppss ppts pptt psbt psos pspp psps pssm psso psst psts ptmp ptms ptop s-os sbbs sbot sbsp sbst smos smot smps smsp smss smtp sobo sobp sobs sobt somb somm somo soom soop soos soot sopo sopp sops soso soss sost sotm soto sotp sots spms spmt spoo spop spos spot spps spso spsp spss spst sptb spto spts ssop ssot sspo ssps sspt sssb sssm ssss sstb sstp ssts stbs stmp stms stmt stob stom stoo stop stos stot stpp stps stsm stss t-mo tbbs tbsp tbst tbtp tmos tmps tmsp tmtt tobo tobs tobt tomb tomm tomo tomp toms tomt toom toos toot top- topo topp tops topt tosb toso toss tost totm toto tots tott tpms tpmt tppp tptp tsmp tsob tsom tsop tsos tspo tsps tspt tssm tsst tstm tsts ttbb ttms ttop ttss tttt