A gray dog runs along the green grass.
A gray dog plays as he runs in the green grass.
The gray dog runs in the green grass in both sentences.
exists e1 s1 s2 x1 x2.(n_grass(x2) & a_green(s2) & Theme(s2,x2) & along(e1,x2) & Actor(e1,x1) & v_run(e1) & n_dog(x1) & a_gray(s1) & Theme(s1,x1))
exists e1 p1 s1 s2 x1 x2.(n_grass(x2) & a_green(s2) & Theme(s2,x2) & exists e2.(in(e2,x2) & Actor(e2,x1) & v_run(e2)) & n_male(x1) & as(e1,p1) & Actor(e1,x1) & v_play(e1) & n_dog(x1) & a_gray(s1) & Theme(s1,x1))