a woman is holding a piece of wood while a man is drilling it.
The woman holds her boyfriends wood.
The man is not necessarily the woman's boyfriends.
exists e1 p1 x1 x2 x3.(exists e2 x4.(Theme(e2,x1) & Actor(e2,x4) & v_drill(e2) & n_man(x4)) & n_thing(x1) & while(e1,p1) & Theme(e1,x2) & Actor(e1,x1) & v_hold(e1) & of(x2,x3) & n_wood(x3) & n_piece(x2) & n_woman(x1))
exists e1 x1 x2 x3.(n_wood(x2) & of(x2,x3) & n_boyfriend(x3) & of(x2,x1) & n_female(x1) & n_woman(x1) & Theme(e1,x2) & Actor(e1,x1) & v_hold(e1))