A dog chews on a stick.
The dog is playing with his toy stick.
The word " playing " is very abstract and can be understood in many ways. It does necessarily mean that the dog is chewing the stick.
exists e1 x1 x2.(on(e1,x2) & n_stick(x2) & Actor(e1,x1) & v_chew(e1) & n_dog(x1))
exists e1 x1 x2 x3.(n_stick(x2) & of(x2,x3) & n_toy(x3) & of(x2,x1) & n_male(x1) & n_dog(x1) & with(e1,x2) & Actor(e1,x1) & v_play(e1))