The white dog with black spots is catching a red Frisbee.
The dog is playing fetch at the park.
Just because the do is catching a Frisbee doesn't necessarily mean he is at the park.
exists e1 s1 s2 s3 x1 x2 x3.(n_dog(x1) & a_white(s1) & Theme(s1,x1) & Theme(e1,x3) & Actor(e1,x1) & v_catch(e1) & n_frisbee(x3) & a_red(s3) & Theme(s3,x3) & with(x1,x2) & n_spot(x2) & a_black(s2) & Theme(s2,x2))
exists e1 s1 x1 x2.(n_park(x2) & n_dog(x1) & at(e1,x2) & a_fetch(s1) & Manner(e1,s1) & Actor(e1,x1) & v_play(e1))