A couple kissing next to the railroad tracks.
A man kisses his wife goodbye at the train station.
Not all couples are heterosexual. Not all couples kissing are married (man and wife), some may just be dating.
exists e1 x1 x2 x3 x4.(n_track(x3) & of(x3,x4) & n_railroad(x4) & a_topic(x1) & to(e1,x3) & r_next(e1) & Actor(e1,x2) & v_kiss(e1) & (x1 = x2) & n_couple(x1))
exists e1 x1 x2 x3 x4 x5.(n_station(x4) & of(x4,x5) & n_train(x5) & Theme(e1,x2) & Actor(e1,x1) & v_kiss(e1) & at(x2,x4) & Time(x2,x3) & n_goodbye(x3) & n_wife(x2) & of(x2,x1) & n_male(x1) & n_man(x1))