a small boy holding pieces of a map while volunteers watch.
The map is a puzzle.
Nothing about holding pieces of a map implies that the map is a puzzle.
exists e1 p1 s1 x1 x2 x3 x4.(a_topic(x1) & exists e2 x5.(Actor(e2,x5) & v_watch(e2) & n_volunteer(x5)) & while(e1,p1) & Theme(e1,x3) & Actor(e1,x2) & v_hold(e1) & of(x3,x4) & n_map(x4) & n_piece(x3) & (x1 = x2) & n_boy(x1) & a_small(s1) & Theme(s1,x1))
exists p1 x1.(n_map(x1) & exists x2.((x1 = x2) & n_puzzle(x2)))