People smoking in a smoking area.
the boy  was listening to music
There can be either people who are smoking or the boy listening to music.
exists x1 x2 x3 x4.(a_topic(x1) & in(x1,x3) & n_area(x3) & of(x3,x4) & n_smoking(x4) & n_smoking(x1) & of(x1,x2) & n_people(x2))
exists e1 x1 x2.(n_boy(x1) & to(e1,x2) & n_music(x2) & Actor(e1,x1) & v_listen(e1))