A girl jumping over a jump rope.
The boy is jumping over the rope.
A girl is not a boy.
exists e1 x1 x2 x3 x4.(a_topic(x1) & over(e1,x3) & n_rope(x3) & of(x3,x4) & n_jump(x4) & Actor(e1,x2) & v_jump(e1) & (x1 = x2) & n_girl(x1))
exists e1 x1 x2.(n_rope(x2) & n_boy(x1) & over(e1,x2) & Actor(e1,x1) & v_jump(e1))