Workers are repairing a road under a bridge.
Some workers are waiting to pour cement.
just because Workers are repairing a road under a bridge does not indicate that Some workers are waiting to pour cement.
exists e1 x1 x2 x3.(under(e1,x3) & n_bridge(x3) & Theme(e1,x2) & Actor(e1,x1) & v_repair(e1) & n_road(x2) & n_worker(x1))
exists e1 p1 x1.(Topic(e1,p1) & Actor(e1,x1) & v_wait(e1) & exists e2 x2.(Theme(e2,x2) & Actor(e2,x1) & v_pour(e2) & n_cement(x2)) & n_worker(x1))