A couple having a conversation over drinks.
The couple are arguing about what to order for dinner.
Just because A couple having a conversation over drinks does not means that they are arguing about what to order for dinner.
exists e1 x1 x2 x3 x4.(a_topic(x1) & over(e1,x4) & n_drink(x4) & Theme(e1,x3) & Actor(e1,x2) & v_have(e1) & n_conversation(x3) & (x1 = x2) & n_couple(x1))
exists e1 x1.(n_couple(x1) & exists p1 x2.(n_thing(x2) & about(e1,x2) & exists e2 x3 x4.(for(e2,x4) & n_dinner(x4) & Theme(e2,x2) & Actor(e2,x3) & v_order(e2) & n_thing(x3))) & Actor(e1,x1) & v_argue(e1))