A couple kiss in a subway station.
A couple is kissing
Couple shows that they are kissing.
exists x1 x2 x3 x4.(a_topic(x1) & in(x1,x3) & n_station(x3) & of(x3,x4) & n_subway(x4) & n_kiss(x1) & of(x1,x2) & n_couple(x2))
exists e1 x1.(Actor(e1,x1) & v_kiss(e1) & n_couple(x1))