A black dog has a dumbbell in his mouth.
The dog is playing with an object.
A dumbbell is an object and the dog would only have it in his mouth if he were playing with it.
exists e1 s1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_have(e1) & in(x2,x3) & n_mouth(x3) & of(x3,x1) & n_male(x1) & n_dumbbell(x2) & n_dog(x1) & a_black(s1) & Theme(s1,x1))
exists e1 x1 x2.(n_dog(x1) & with(e1,x2) & n_object(x2) & Actor(e1,x1) & v_play(e1))