A man and his son looking at a mime.
Man and son looking at lions.
A mime is different than lions.
exists e1 s1 x1 x2 x3 x4.(a_topic(s1) & subset_of(x2,s1) & at(e1,x4) & n_mime(x4) & Actor(e1,x3) & v_look(e1) & (x2 = x3) & n_son(x2) & of(x2,x1) & n_male(x1) & subset_of(x1,s1) & n_man(x1))
exists e1 s1 x1 x2 x3 x4.(a_topic(s1) & subset_of(x2,s1) & at(e1,x4) & n_lion(x4) & Actor(e1,x3) & v_look(e1) & (x2 = x3) & n_son(x2) & subset_of(x1,s1) & n_man(x1))