Two dogs play in the water under a bridge.
Two cats fight over a bird.
Play is fun, fight is violent.
exists x1 x2 x3 x4.(n_water(x3) & a_topic(x1) & under(x1,x4) & n_bridge(x4) & in(x1,x3) & n_play(x1) & of(x1,x2) & n_dog(x2) & card_eq_2(x1))
exists x1 x2 x3.(a_topic(x1) & over(x1,x3) & n_bird(x3) & n_fight(x1) & of(x1,x2) & n_cat(x2) & card_eq_2(x1))