A group of pugs in a lawn.
A litter of puppies are playing with a ball in the grass.
Pugs in the lawn does not imply puppies are playing.
exists x1 x2 x3.(a_topic(x1) & of(x1,x2) & in(x2,x3) & n_lawn(x3) & n_pug(x2) & n_group(x1))
exists e1 x1 x2 x3 x4.(n_grass(x4) & with(e1,x3) & in(x3,x4) & n_ball(x3) & Actor(e1,x1) & v_play(e1) & of(x1,x2) & n_puppy(x2) & n_litter(x1))