A car is driving towards a green mountain.
The mountain is blue
A mountain can't have both colors at the same time, blue and green
exists e1 s1 x1 x2.(towards(e1,x2) & n_mountain(x2) & a_green(s1) & Theme(s1,x2) & Actor(e1,x1) & v_drive(e1) & n_car(x1))
exists s1 x1.(n_mountain(x1) & Theme(s1,x1) & a_blue(s1))