A dog leaps across the grass.
The dog is at the park.
Just because a dog leaps across the grass does not imply that it is at the park.
exists e1 x1 x2.(n_grass(x2) & across(e1,x2) & Actor(e1,x1) & v_leap(e1) & n_dog(x1))
exists p1 x1 x2.(n_park(x2) & n_dog(x1) & at(x1,x2))