There are two carts being driven by mules, each carrying some crops and people.
The mules are gray in color.
The gray color of the mules cannot be determined simply from knowing what they are pulling.
exists p1 x1 e1 x2 x3 x4 x5 x6.((x1 = x2) & Actor(e1,x4) & rel(x4,x5) & subset_of(x6,x5) & n_people(x6) & all x7.(n_thing(x7) -> exists e2 x8 x9.(subset_of(x7,x5) & Theme(e2,x9) & Actor(e2,x8) & v_carry(e2) & n_crop(x9) & (x7 = x8))) & n_mule(x4) & Theme(e1,x3) & v_drive(e1) & (x2 = x3) & n_cart(x2) & card_eq_2(x2))
exists s1 x1 x2.(n_mule(x1) & in(s1,x2) & n_color(x2) & Theme(s1,x1) & a_gray(s1))