Two men are having a conversation.
A group of teenagers playing a game.
Teenagers playing a game imply juveniles engaged in revelry which contradicts men having a conversation; which implies adult men engaged in a serious conversation.
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_have(e1) & n_conversation(x2) & n_man(x1) & card_eq_2(x1))
exists e1 x1 x2 x3 x4.(a_topic(x1) & Theme(e1,x4) & Actor(e1,x3) & v_play(e1) & n_game(x4) & (x1 = x3) & of(x1,x2) & n_teenager(x2) & n_group(x1))