The horse on the left is brown.
One of the horses is brown.
The horse of  One of the horses  left is brown
exists s1 x1 x2.(n_left(x2) & n_horse(x1) & Theme(s1,x1) & a_brown(s1) & on(x1,x2))
exists e1 x1 x2.(n_horse(x2) & Theme(e1,x1) & v_brown(e1) & of(x1,x2) & n_thing(x1) & card_eq_1(x1))