bbbb bbbs bboy bbyo bobb bobo bobs boby bomb boms bomy boob boom boos bosm boso boss boyo boys bsms bsos bssm byob byos bysb bysm byso byss bysy mbbs mbms mmmm mmms mmyy mobb mobo mobs moby momo moms momy moob moos moso moss mosy moyo msmb msmm msms mssm mybb mymy myo- myob myos mys- myss myys obbo obby obos oboy obss ombo omo- omoo ooby ooms oooo ooos osby osm- osmo osoo osos ossb osso ossy oyss s-os sbbs smos smoy smss sobo sobs somb somm somo somy soom soos sooy soso soss soyo soys ssby sssb sssm ssss sybo sym- syms syso syss ybbs yobo yobs yomo yoso yoyo ysby ysyb yyyy