A woman leans over a rail to get a picture of flowers.
A woman leans over a rail to get a picture of plants.
The fact that the woman is getting a picture of flowers does not mean that the flowers are plants.  The flowers could be fake, or in a vase or cut, which means they would no longer be plants.
exists e1 p1 x1 x2 x3.(Topic(e1,p1) & exists e2 x4 x5.(Theme(e2,x4) & Actor(e2,x1) & v_get(e2) & of(x4,x5) & n_flower(x5) & n_picture(x4)) & over(e1,x3) & n_rail(x3) & Actor(e1,x2) & v_lean(e1) & n_woman(x2) & n_woman(x1))
exists e1 p1 x1 x2 x3.(Topic(e1,p1) & exists e2 x4 x5.(Theme(e2,x4) & Actor(e2,x1) & v_get(e2) & of(x4,x5) & n_plant(x5) & n_picture(x4)) & over(e1,x3) & n_rail(x3) & Actor(e1,x2) & v_lean(e1) & n_woman(x2) & n_woman(x1))