A brown dog with a baseball in its mouth.
The dog with the ball in his mouth is playing catch.
Just because a dog has a baseball in its mouth doesn't mean it is playing catch
exists s1 x1 x2 x3.(a_topic(x1) & with(x1,x2) & in(x2,x3) & n_mouth(x3) & of(x3,x1) & n_thing(x1) & n_baseball(x2) & n_dog(x1) & a_brown(s1) & Theme(s1,x1))
exists e1 x1 x2 x3 x4.(n_mouth(x3) & of(x3,x2) & n_male(x2) & n_ball(x2) & n_dog(x1) & Theme(e1,x4) & Actor(e1,x1) & v_play(e1) & n_catch(x4) & with(x1,x2) & in(x2,x3))