Two men are talking in a house.
Two people are talking.
Both subjects are talking
exists e1 x1 x2.(in(e1,x2) & n_house(x2) & Actor(e1,x1) & v_talk(e1) & n_man(x1) & card_eq_2(x1))
exists e1 x1.(Actor(e1,x1) & v_talk(e1) & n_people(x1) & card_eq_2(x1))