Two boys in blue shirts fighting behind a gray car and two other children.
the boys are sitting under the ocean
Two boys are fighting.   The two boys are not sitting under the ocean.
exists e1 s1 s2 x1 x2 x3 x4 x5 x6 x7.(n_child(x7) & a_topic(x1) & in(x1,x2) & behind(e1,x4) & -(x6 = x7) & n_child(x6) & card_eq_2(x6) & n_car(x5) & subset_of(x6,x4) & subset_of(x5,x4) & a_gray(s2) & Theme(s2,x4) & Actor(e1,x3) & v_fight(e1) & (x2 = x3) & n_shirt(x2) & a_blue(s1) & Theme(s1,x2) & n_boy(x1) & card_eq_2(x1))
exists e1 x1 x2.(n_ocean(x2) & n_boy(x1) & under(e1,x2) & Actor(e1,x1) & v_sit(e1))