Three young boys looking through a window.
Three young boys doing their school work.
They cannot be looking through a window and doing work at the same time.
exists e1 s1 x1 x2.(through(e1,x2) & n_window(x2) & Actor(e1,x1) & v_look(e1) & n_boy(x1) & a_young(s1) & Theme(s1,x1) & card_eq_3(x1))
exists e1 s1 x1 x2 x3 x4.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_do(e1) & n_work(x3) & of(x3,x4) & n_school(x4) & of(x3,x1) & n_thing(x1) & (x1 = x2) & n_boy(x1) & a_young(s1) & Theme(s1,x1) & card_eq_3(x1))