A man is walking in the woods.
A man walks with a camera in the woods snapping pictures.
Not all men are with a camera.
exists e1 x1 x2.(n_wood(x2) & in(e1,x2) & Actor(e1,x1) & v_walk(e1) & n_man(x1))
exists e2 e1 x1 x2 x3 x4 x5.(n_wood(x3) & with(e1,x2) & in(x2,x3) & Theme(e2,x5) & Actor(e2,x4) & v_snap(e2) & n_picture(x5) & (x3 = x4) & n_camera(x2) & Actor(e1,x1) & v_walk(e1) & n_man(x1))