Construction workers drilling through a plank of wood.
Workers drill through wood.
The construction workers seen drilling are the workers that are drilling.
exists e1 x1 x2 x3 x4.(through(e1,x3) & of(x3,x4) & n_wood(x4) & n_plank(x3) & Actor(e1,x1) & v_drill(e1) & n_worker(x1) & of(x1,x2) & n_construction(x2))
exists e1 x1 x2.(through(e1,x2) & n_wood(x2) & Actor(e1,x1) & v_drill(e1) & n_worker(x1))