The large gray colored dog is jumping on the beach.
a dog is jumping
A dog is jumping places emphasis on the fact a gray colored dog is jumping.
exists e1 e2 s1 s2 x1 x2.(n_beach(x2) & n_dog(x1) & Theme(e1,x1) & v_color(e1) & a_gray(s2) & Theme(s2,x1) & a_large(s1) & Theme(s1,x1) & on(e2,x2) & Actor(e2,x1) & v_jump(e2))
exists e1 x1.(Actor(e1,x1) & v_jump(e1) & n_dog(x1))