A dog leaps on the beach.
A dog is lying down near the beach.
the dog can not be lying down and leaping at the same time.
exists e1 x1 x2.(n_beach(x2) & on(e1,x2) & Actor(e1,x1) & v_leap(e1) & n_dog(x1))
exists e1 s1 x1 x2.(n_beach(x2) & near(e1,x2) & a_down(s1) & Manner(e1,s1) & Actor(e1,x1) & v_lie(e1) & n_dog(x1))