Four women operate laptops.
Four women using computers to analyze data from last season's umbrella sales.
Women can operate laptops for a number of reasons other than to analyze data from umbrella sales.  Laptops are a specific type of computer therefore saying computers may not discuss laptops.
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 p1 x1 x2 x3.(a_topic(x1) & Theme(e1,p1) & Recipient(e1,x3) & Actor(e1,x2) & v_use(e1) & exists e2 s1 x4 x5 x6 x7.(from(e2,x6) & n_sale(x6) & of(x6,x7) & n_umbrella(x7) & of(x6,x5) & n_season(x5) & a_last(s1) & Theme(s1,x5) & Theme(e2,x4) & Actor(e2,x2) & v_analyze(e2) & n_datum(x4)) & n_computer(x3) & (x1 = x2) & n_woman(x1) & card_eq_4(x1))