A woman is riding a brown and white horse.
There is a woman riding a horse.
A brown and white horse is a form of horse.
exists e1 s1 s2 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_ride(e1) & n_horse(x2) & a_white(s2) & Theme(s2,x2) & a_brown(s1) & Theme(s1,x2) & n_woman(x1))
exists p1 x1 e1 x2 x3 x4.((x1 = x2) & Theme(e1,x4) & Actor(e1,x3) & v_ride(e1) & n_horse(x4) & (x2 = x3) & n_woman(x2))