Dog catching a red Frisbee.
A dog catches a frisbee in the park.
The dog could be catching the Frisbee anywhere, not necessarily in the park.
exists e1 s1 x1 x2.(ne_nam_dog(x1) & Theme(e1,x2) & Actor(e1,x1) & v_catch(e1) & n_frisbee(x2) & a_red(s1) & Theme(s1,x2))
exists e1 x1 x2 x3.(n_park(x3) & in(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_catch(e1) & n_frisbee(x2) & n_dog(x1))