Two guys sorting through some items.
The men are searching for antique lighters.
Not all guys sorting through items are searching for antique lighters.
exists e1 x1 x2 x3.(a_topic(x1) & through(e1,x3) & n_item(x3) & Actor(e1,x2) & v_sort(e1) & (x1 = x2) & n_guy(x1) & card_eq_2(x1))
exists e1 s1 x1 x2.(n_man(x1) & for(e1,x2) & n_lighter(x2) & a_antique(s1) & Theme(s1,x2) & Actor(e1,x1) & v_search(e1))