White dog with a tennis ball in its mouth running through green grass.
A dog is playing catch with his owner.
A dog can run through grass and carry a ball in its mouth even if the dog isn't playing catch with his owner.
exists e1 s1 x1 x2 x3 x4 x5 x6 x7.(a_topic(x1) & with(x1,x3) & in(x3,x5) & through(e1,x7) & n_grass(x7) & a_green(s1) & Theme(s1,x7) & Actor(e1,x6) & v_run(e1) & (x5 = x6) & n_mouth(x5) & of(x5,x1) & n_thing(x1) & n_ball(x3) & of(x3,x4) & n_tennis(x4) & n_dog(x1) & (x1 = x2) & ne_per_white(x2))
exists e1 x1 x2 x3.(with(e1,x3) & n_owner(x3) & of(x3,x1) & n_male(x1) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_catch(x2) & n_dog(x1))