A couple kisses at a concert.
Couple greeting each other with a kiss.
Sentence two may be talking about different couple.
exists e1 x1 x2.(at(e1,x2) & n_concert(x2) & Actor(e1,x1) & v_kiss(e1) & n_couple(x1))
exists x1 x2.(a_topic(x1) & all x3.(n_other(x3) -> exists e1 x4.(with(e1,x4) & n_kiss(x4) & Theme(e1,x3) & Actor(e1,x2) & v_greet(e1))) & (x1 = x2) & n_couple(x1))