A dog jumps over a hurdle in the grass.
A hurdle sits in some grass as dog jumps over it.
Dog jumps over a hurdle is rephrased as a hurdle sits as dog jumps over it. A dog jumps over a hurdle is the action taking place.
exists e1 x1 x2 x3.(n_grass(x3) & over(e1,x2) & in(x2,x3) & n_hurdle(x2) & Actor(e1,x1) & v_jump(e1) & n_dog(x1))
exists e1 x1 x2 x3 x4.(as(e1,x3) & over(x3,x1) & n_thing(x1) & n_jump(x3) & of(x3,x4) & n_dog(x4) & in(e1,x2) & n_grass(x2) & Actor(e1,x1) & v_sit(e1) & n_hurdle(x1))