Two dogs are jumping on an empty beach with waves.
Two dogs are jumping for a ball at the beach.
Not all beach is empty.
exists e1 s1 x1 x2 x3.(with(e1,x3) & n_wave(x3) & on(e1,x2) & n_beach(x2) & a_empty(s1) & Theme(s1,x2) & Actor(e1,x1) & v_jump(e1) & n_dog(x1) & card_eq_2(x1))
exists e1 x1 x2 x3.(n_beach(x3) & at(e1,x3) & for(e1,x2) & n_ball(x2) & Actor(e1,x1) & v_jump(e1) & n_dog(x1) & card_eq_2(x1))