-ism bbbb bbbs bibb bibi bibs biis bims bis- biss bisy biys bmmi bsim bsms bssm bysb bysi bysm byss bysy i-by ibbm ibim ibis ibms ibss ibyi iiii iiis iisi iism imbi immi imms immy imsi imss isim isis ismi isms ismy issi isss issy isys mbbs mbim mbis mbms mibs miii miis mim- mimi mims mimy mis- misi miss misy mmii mmis mmmm mmms mmyy msmb msmm msms mssi mssm mybb mybi myi- myis mymy mys- myss myys s-ib s-ii sbbs sbsi sibi sibs siby siim simi simm sims simy sisi siss sisy siyi smis smss ssby ssis sssb sssi sssm ssss syis sym- symi syms syss ybbs yiss ysby ysii ysyb yyyy