Man and woman kissing on a public street.
A couple is on a date.
A couple does not have to be made up of a man and a woman, it just has to be two people who are romantically involved. Also, one does not need to be on a date in order to kiss.
exists e1 s1 s2 x1 x2 x3 x4.(a_topic(s1) & subset_of(x2,s1) & on(e1,x4) & n_street(x4) & a_public(s2) & Theme(s2,x4) & Actor(e1,x3) & v_kiss(e1) & (x2 = x3) & n_woman(x2) & subset_of(x1,s1) & n_man(x1))
exists p1 x1.(exists x2.(on(x1,x2) & n_date(x2)) & n_couple(x1))