An older man stands by a pile of trash.
the old guy is by trash on his birthday
every old man standing near the trash does not mean that they have birthday
exists s1 x1 x2 x3 x4.(a_topic(x1) & by(x1,x3) & of(x3,x4) & n_trash(x4) & n_pile(x3) & n_stand(x1) & of(x1,x2) & n_man(x2) & r_more(s1) & a_older(s1) & Theme(s1,x1))
exists p1 s1 x1 x3.(n_birthday(x3) & of(x3,x1) & n_male(x1) & n_guy(x1) & a_old(s1) & Theme(s1,x1) & exists x2.(by(x1,x2) & on(x2,x3) & n_trash(x2)))