a man is drilling in the side of a building.
The man is working with a drill.
A man is working with a drill therefor the man is drilling in the side of the building.
exists e1 x1 x2 x3.(n_side(x2) & in(e1,x2) & of(x2,x3) & n_building(x3) & Actor(e1,x1) & v_drill(e1) & n_man(x1))
exists e1 x1 x2.(n_man(x1) & with(e1,x2) & n_drill(x2) & Actor(e1,x1) & v_work(e1))