A man in green is watching a train go by.
The man is waiting to cross the track.
watching a train go by doesn't always mean waiting to cross the track.
exists e1 s1 x1 x2 x3 x4.(a_by(s1) & Manner(e1,s1) & Theme(e1,x3) & Actor(e1,x1) & v_watch(e1) & n_go(x3) & of(x3,x4) & n_train(x4) & in(x1,x2) & n_green(x2) & n_man(x1))
exists e1 p1 x1 x2.(n_track(x2) & n_man(x1) & Topic(e1,p1) & Actor(e1,x1) & v_wait(e1) & exists e2.(Theme(e2,x2) & Actor(e2,x1) & v_cross(e2)))