Young sheep in the grass.
Animals in the grass.
Sheep are animals that are in the grass.
exists s1 x1 x2.(n_grass(x2) & a_topic(x1) & in(x1,x2) & n_sheep(x1) & a_young(s1) & Theme(s1,x1))
exists x1 x2.(n_grass(x2) & a_topic(x1) & in(x1,x2) & n_animal(x1))