A group of people walk in a line toward a construction area.
The people are watching the workers.
Walking towards a construction area does not imply they are watching workers.  The fact that there is a construction area does not also mean there are automatically workers there.
exists e1 x1 x2 x3 x4 x5 x6.(a_topic(x1) & of(x1,x2) & in(e1,x4) & toward(x4,x5) & n_area(x5) & of(x5,x6) & n_construction(x6) & n_line(x4) & Theme(e1,x3) & v_walk(e1) & (x2 = x3) & n_people(x2) & n_group(x1))
exists e1 x1 x2.(n_worker(x2) & n_people(x1) & Theme(e1,x2) & Actor(e1,x1) & v_watch(e1))