Four women operate laptops.
Four women using computers.
Laptops are computers
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_operate(e1) & n_laptop(x2) & n_woman(x1) & card_eq_4(x1))
exists e1 x1 x2 x3.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_use(e1) & n_computer(x3) & (x1 = x2) & n_woman(x1) & card_eq_4(x1))