Couple sleep on subway line sitting next to each other.
A couple chatting with each other.
The couple is either chatting or sleeping.
exists e1 x1 x2 x3 x4 x5.(a_topic(x1) & on(x1,x3) & all x6.(n_other(x6) -> to(e1,x6)) & r_next(e1) & Actor(e1,x5) & v_sit(e1) & (x3 = x5) & n_line(x3) & of(x3,x4) & n_subway(x4) & n_sleep(x1) & of(x1,x2) & n_couple(x2))
exists e1 x1 x2.(a_topic(x1) & all x3.(n_other(x3) -> with(e1,x3)) & Actor(e1,x2) & v_chat(e1) & (x1 = x2) & n_couple(x1))