A red car is passing in front of a double-decker bus.
A car passes in front of other cars
A car can be passing a bus without passing in front of other cars.
exists e1 s1 s2 x1 x2 x3.(in(e1,x2) & of(x2,x3) & n_bus(x3) & a_double-decker(s2) & Theme(s2,x3) & n_front(x2) & Actor(e1,x1) & v_pass(e1) & n_car(x1) & a_red(s1) & Theme(s1,x1))
exists e1 x1 x2 x3.(in(e1,x2) & of(x2,x3) & -(x3 = x1) & n_car(x1) & n_car(x1) & n_car(x3) & n_front(x2) & Actor(e1,x1) & v_pass(e1))