A woman poses for a picture while in front of a lake.
The woman is an actress.
Just because the woman is posing for a picture, does not mean that she is an actress.
exists e1 x1 x2 x3 x4.(in(e1,x3) & of(x3,x4) & n_lake(x4) & n_front(x3) & r_while(e1) & for(e1,x2) & n_picture(x2) & Actor(e1,x1) & v_pose(e1) & n_woman(x1))
exists p1 x1.(n_woman(x1) & exists x2.((x1 = x2) & n_actress(x2)))