A tall bird is standing on the sand beside the ocean.
A tall bird has a fish in its mouth.
The bird does not necessarily have a fish in its mouth.
exists e1 s1 x1 x2 x3.(n_ocean(x3) & n_sand(x2) & beside(e1,x3) & on(e1,x2) & Actor(e1,x1) & v_stand(e1) & n_bird(x1) & a_tall(s1) & Theme(s1,x1))
exists e1 s1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_have(e1) & in(x2,x3) & n_mouth(x3) & of(x3,x1) & n_thing(x1) & n_fish(x2) & n_bird(x1) & a_tall(s1) & Theme(s1,x1))