Small dog catching a Frisbee.
a guinea pig is squeaking
There can either be a dog or a guinea pig.
exists e1 s1 x1 x2 x3.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_catch(e1) & n_frisbee(x3) & (x1 = x2) & n_dog(x1) & a_small(s1) & Theme(s1,x1))
exists e1 x1 x2.(Actor(e1,x1) & v_squeak(e1) & n_pig(x1) & of(x1,x2) & n_guinea(x2))