A child is enjoying the ducks on a fall day.
The ducks are white.
Not all ducks are white.
exists e1 x1 x2 x3 x4.(n_duck(x2) & on(e1,x3) & n_day(x3) & of(x3,x4) & n_fall(x4) & Theme(e1,x2) & Actor(e1,x1) & v_enjoy(e1) & n_child(x1))
exists s1 x1.(n_duck(x1) & Theme(s1,x1) & a_white(s1))