bbbb bbbs bmop bobb bobo bobs bomb bomp boms boob boom boop boos bopp bops bosm boso boss bpms bsms bsos bspp bssm mbbs mbms mbps mmmm mmms mobb mobo mobs momo moms moob moop moos mopp mops moso moss mppp mpps msmb msmm msms msop mspb mspp mssm mssp obbo obos obss ombo omo- omoo omps ooms oooo ooos oops opms opo- opos oppo opps opsm osbp osm- osmo osoo osos ospm ossb osso pbsp pmmp pmos pmpm pmpo pobo pobs pomo pomp poms poop poos pop- popo popp pops posb poso poss ppms ppos pppo pppp ppps ppss psos pspp psps pssm psso s-os sbbs sbsp smos smps smsp smss sobo sobp sobs somb somm somo soom soop soos sopo sopp sops soso soss spms spoo spop spos spps spso spsp spss ssop sspo ssps sssb sssm ssss