A man cutting fish for sale.
A man is cutting fish.
man cutting fish is same as man is cutting fish
exists e1 x1 x2 x3 x4.(a_topic(x1) & for(e1,x4) & n_sale(x4) & Theme(e1,x3) & Actor(e1,x2) & v_cut(e1) & n_fish(x3) & (x1 = x2) & n_man(x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_cut(e1) & n_fish(x2) & n_man(x1))