a little boy plays at the zoo.
There is a lion in the photo.
zoo. doesn't always mean  lion
exists e1 s1 x1 x2.(n_zoo(x2) & at(e1,x2) & Actor(e1,x1) & v_play(e1) & n_boy(x1) & a_little(s1) & Theme(s1,x1))
exists p1 x1 x3.(n_photo(x3) & exists x2.((x1 = x2) & in(x2,x3) & n_lion(x2)))