A white dog standing on leaves on the ground.
it is fall
It is not implied that it is fall.
exists s1 x1 x2 x3 x4.(n_ground(x4) & a_topic(x1) & on(x1,x3) & on(x3,x4) & n_leaf(x3) & n_standing(x1) & of(x1,x2) & n_dog(x2) & a_white(s1) & Theme(s1,x1))
exists p1 x1.(n_thing(x1) & exists x2.((x1 = x2) & n_fall(x2)))