Two professional businessmen having a conversation.
Two women are eating at a buffet
Having a conversation is not eating.
exists e1 s1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_have(e1) & n_conversation(x2) & n_businessman(x1) & a_professional(s1) & Theme(s1,x1) & card_eq_2(x1))
exists e1 x1 x2.(at(e1,x2) & n_buffet(x2) & Actor(e1,x1) & v_eat(e1) & n_woman(x1) & card_eq_2(x1))