A person is looking behind them at a red and white firetruck.
A person is looking at the emergency vehicle.
A firetruck is an emergency vehicle.
exists e1 s1 s2 x1 x2.(at(e1,x2) & n_firetruck(x2) & a_white(s2) & Theme(s2,x2) & a_red(s1) & Theme(s1,x2) & behind(e1,x1) & n_thing(x1) & Actor(e1,x1) & v_look(e1) & n_person(x1))
exists e1 x1 x2 x3.(n_vehicle(x2) & of(x2,x3) & n_emergency(x3) & at(e1,x2) & Actor(e1,x1) & v_look(e1) & n_person(x1))