Two bulldogs playing on the floor.
the dogs rolling on the floor
Not all dogs play by rolling.
exists e1 x1 x2 x3.(n_floor(x3) & a_topic(x1) & on(e1,x3) & Actor(e1,x2) & v_play(e1) & (x1 = x2) & n_bulldog(x1) & card_eq_2(x1))
exists e1 x1 x2 x3.(n_floor(x3) & n_dog(x1) & a_topic(x1) & on(e1,x3) & Actor(e1,x2) & v_roll(e1) & (x1 = x2))