Two swans swimming in the water.
Two swans are white.
Answer :The fact that two swans are swimming in the water does not necessarily imply that they are white
exists x1 x2 x3.(n_water(x3) & a_topic(x1) & in(x1,x3) & n_swimming(x1) & of(x1,x2) & n_swan(x2) & card_eq_2(x1))
exists s1 x1.(Theme(s1,x1) & a_white(s1) & n_swan(x1) & card_eq_2(x1))