Some construction workers are taking a break.
There constructions workers are eating lunch
Not all construction workers taking a break are eating lunch.
exists e1 x1 x2 x3.(Theme(e1,x3) & Actor(e1,x1) & v_take(e1) & n_break(x3) & n_worker(x1) & of(x1,x2) & n_construction(x2))
exists e1 e2 x1 x2 x3 x4.(Theme(e2,x4) & Actor(e2,x1) & v_eat(e2) & n_lunch(x4) & Theme(e1,x3) & Actor(e1,x2) & v_construction(e1) & n_worker(x3) & (x1 = x2))