A dog jumps over a barrier.
A dog leaps through the air.
In order to jump over a barrier, the dog must leap through the air.
exists e1 x1 x2.(over(e1,x2) & n_barrier(x2) & Actor(e1,x1) & v_jump(e1) & n_dog(x1))
exists e1 x1 x2.(n_air(x2) & through(e1,x2) & Actor(e1,x1) & v_leap(e1) & n_dog(x1))