Four friends engaged in conversation.
friends travelling in car
They are having a conversation instead of traveling.
exists e1 x1 x2.(in(e1,x2) & n_conversation(x2) & Theme(e1,x1) & v_engage(e1) & n_friend(x1) & card_eq_4(x1))
exists e1 x1 x2 x3.(a_topic(x1) & in(e1,x3) & n_car(x3) & Actor(e1,x2) & v_travel(e1) & (x1 = x2) & n_friend(x1))