A worker with an orange vest working on a road.
Worker in orange vest working on the road.
To be in a vest is to be with a vest.  Working on the road is the same as working on a road.
exists e1 x1 x2 x3 x4 x5.(a_topic(x1) & with(x1,x2) & on(e1,x5) & n_road(x5) & Actor(e1,x4) & v_work(e1) & (x2 = x4) & n_vest(x2) & of(x2,x3) & n_orange(x3) & n_worker(x1))
exists e1 s1 x1 x2 x3 x4.(n_road(x4) & ne_nam_worker(s1) & a_topic(s1) & in(s1,x1) & on(e1,x4) & Actor(e1,x3) & v_work(e1) & (x1 = x3) & n_vest(x1) & of(x1,x2) & n_orange(x2))