a little boy plays at the zoo.
A little boy mimicking animals at the zoo.
Just because a little boy plays at the zoo does not mean he is mimicking animals.
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 e1 s1 x1 x2 x3 x4.(n_zoo(x4) & a_topic(x1) & at(e1,x4) & Theme(e1,x3) & Actor(e1,x2) & v_mimic(e1) & n_animal(x3) & (x1 = x2) & n_boy(x1) & a_little(s1) & Theme(s1,x1))