Two men in a crowd taking pictures.
Two men reading novels.
The subject cannot be taking pictures and reading novels.
exists e1 x1 x2 x3 x4.(a_topic(x1) & in(x1,x2) & Theme(e1,x4) & Actor(e1,x3) & v_take(e1) & n_picture(x4) & (x2 = x3) & n_crowd(x2) & n_man(x1) & card_eq_2(x1))
exists e1 x1 x2 x3.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_read(e1) & n_novel(x3) & (x1 = x2) & n_man(x1) & card_eq_2(x1))