two boys in uniforms exchanging an item
The boys are trading Pokemon cards.
Item does not imply Pokemon cards.
exists e1 x1 x2 x3 x4.(a_topic(x1) & in(x1,x2) & Theme(e1,x4) & Actor(e1,x3) & v_exchange(e1) & n_item(x4) & (x2 = x3) & n_uniform(x2) & n_boy(x1) & card_eq_2(x1))
exists e1 x1 x2 x3.(n_boy(x1) & Theme(e1,x2) & Actor(e1,x1) & v_trade(e1) & n_card(x2) & (x2 = x3) & ne_per_pokemon(x3))