This man is at work on the street.
The man is filling potholes.
We don't know that the man is filing potholes.
exists p1 x1 x3.(n_street(x3) & n_man(x1) & exists x2.(at(x1,x2) & on(x2,x3) & n_work(x2)))
exists e1 x1 x2.(n_man(x1) & Theme(e1,x2) & Actor(e1,x1) & v_fill(e1) & n_pothole(x2))