A hand holding an object while a hole is drilled in it.
There is no one around while the hole is being drilled.
If a hand is holding the object being drilled then someone is around.
exists e1 p1 x1 x2 x3.(a_topic(x1) & exists e2 x4.(in(e2,x1) & Theme(e2,x4) & v_drill(e2) & n_hole(x4)) & n_thing(x1) & while(e1,p1) & Theme(e1,x3) & Actor(e1,x2) & v_hold(e1) & n_object(x3) & (x1 = x2) & n_hand(x1))
exists p1 p2 x1 x3.(n_hole(x3) & exists e1.(Theme(e1,x3) & v_drill(e1)) & while(p1,p2) & -exists s1 x2.((x1 = x2) & n_one(x2) & a_around(s1) & Theme(s1,x2)))