A brown dog in midair with a Frisbee in his mouth.
A brown dog is at a park catching a frisbee.
Not all dogs with a Frisbee in his mouth is at a park.
exists s1 x1 x2 x3 x4.(a_topic(x1) & in(x1,x2) & with(x2,x3) & in(x3,x4) & n_mouth(x4) & of(x4,x1) & n_male(x1) & n_frisbee(x3) & n_midair(x2) & n_dog(x1) & a_brown(s1) & Theme(s1,x1))
exists p1 s1 x1.(exists e1 x2 x3 x4.(at(x1,x2) & Theme(e1,x4) & Actor(e1,x3) & v_catch(e1) & n_frisbee(x4) & (x2 = x3) & n_park(x2)) & n_dog(x1) & a_brown(s1) & Theme(s1,x1))