a little boy plays at the zoo.
A kid at a zoo.
boy plays at the zoo just implies kid at a zoo
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 x1 x2.(a_topic(x1) & at(x1,x2) & n_zoo(x2) & n_kid(x1))