Small puppy stands on top of plastic bag.
The puppy is standing on the bag.
you are standing if you stands on top of something
exists s1 s2 s3 x1 x2 x3.(a_topic(x1) & on(x1,x2) & of(x2,x3) & n_bag(x3) & a_plastic(s3) & Theme(s3,x3) & n_top(x2) & n_stand(x1) & a_puppy(s2) & Theme(s2,x1) & a_small(s1) & Theme(s1,x1))
exists e1 x1 x2.(n_bag(x2) & n_puppy(x1) & on(e1,x2) & Actor(e1,x1) & v_stand(e1))