people are looking at the antique cars, and the police officer is taking pictures.
Two dogs are fighting over a ball
People looking at cars and a police officer taking pictures is not the same as two dogs fighting over a ball.
exists e2 e1 s1 x1 x2 x3 x4 x5.(n_officer(x3) & of(x3,x4) & n_police(x4) & n_car(x2) & a_antique(s1) & Theme(s1,x2) & Theme(e2,x5) & Actor(e2,x3) & v_take(e2) & n_picture(x5) & at(e1,x2) & Actor(e1,x1) & v_look(e1) & n_people(x1))
exists e1 x1 x2.(over(e1,x2) & n_ball(x2) & Actor(e1,x1) & v_fight(e1) & n_dog(x1) & card_eq_2(x1))