There are four people dressed in orange clothes walking down the street.
Some men in black knock on a man's door.
The people cannot be in both orange and black,  The people cannot be walking down the street and knocking on a man's door at the same time.
exists p1 x1 x7.(n_street(x7) & exists e1 e2 x2 x3 x4 x5 x6.((x1 = x2) & in(e1,x4) & down(e2,x7) & Actor(e2,x6) & v_walk(e2) & (x4 = x6) & n_clothes(x4) & of(x4,x5) & n_orange(x5) & Theme(e1,x3) & v_dress(e1) & (x2 = x3) & n_people(x2) & card_eq_4(x2)))
exists s1 x1 x2 x3 x4.(a_topic(x1) & on(x1,x4) & n_door(x4) & of(x4,x3) & n_man(x3) & in(x1,x2) & n_knock(x2) & a_black(s1) & Theme(s1,x2) & n_man(x1))