A couple having a conversation over drinks.
a couple is talking.
A conversation is the same as talking
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.(Actor(e1,x1) & v_talk(e1) & n_couple(x1))