A man plays Frisbee with his dog.
The dog is catching a frisbee in its mouth.
Plays frisbee does not imply catching it in his mouth.
exists e1 x1 x2 x3.(n_dog(x3) & of(x3,x2) & n_male(x2) & ne_per_frisbee(x2) & with(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_man(x1))
exists e1 x1 x2 x3.(n_mouth(x3) & of(x3,x1) & n_thing(x1) & n_dog(x1) & in(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_catch(e1) & n_frisbee(x2))