a bee on top of a flower
bee sucking nectar from flower
Not every bee on top of a flower is sucking nectar from the flower.
exists x1 x2 x3.(a_topic(x1) & on(x1,x2) & of(x2,x3) & n_flower(x3) & n_top(x2) & n_bee(x1))
exists e1 x1 x2 x3.(a_topic(x1) & from(x1,x3) & n_flower(x3) & n_nectar(x1) & Actor(e1,x1) & v_suck(e1) & of(x1,x2) & n_bee(x2))