Two houses and fire
Two houses are burning.
Houses burning does not mean they are on fire.
exists s1 x1 x2.(n_fire(x2) & n_house(x1) & card_eq_2(x1) & subset_of(x2,s1) & subset_of(x1,s1) & a_topic(s1))
exists e1 x1.(Actor(e1,x1) & v_burn(e1) & n_house(x1) & card_eq_2(x1))