People walking in a supermarket.
A herd of deer.
People and deer are different animals. Also deer are not supposed to be in a supermarket
exists e1 x1 x2 x3.(a_topic(x1) & in(e1,x3) & n_supermarket(x3) & Actor(e1,x2) & v_walk(e1) & (x1 = x2) & n_people(x1))
exists x1 x2.(a_topic(x1) & of(x1,x2) & n_deer(x2) & n_herd(x1))