Rider riding a white horse that is jumping a fence.
a rider on a white horse is jumping a fence in a competition
There is no way to know if the rider is in a competition setting.
exists e1 e2 s1 x1 x2 x3 x4.(ne_nam_rider(x1) & Theme(e2,x2) & Actor(e2,x1) & v_ride(e2) & Theme(e1,x4) & Actor(e1,x3) & v_jump(e1) & n_fence(x4) & (x2 = x3) & n_horse(x2) & a_white(s1) & Theme(s1,x2))
exists e1 s1 x1 x2 x3 x4.(in(e1,x4) & n_competition(x4) & Theme(e1,x3) & Actor(e1,x1) & v_jump(e1) & n_fence(x3) & on(x1,x2) & n_horse(x2) & a_white(s1) & Theme(s1,x2) & n_rider(x1))