The man in the gray top is walking down the steps, and the man in the orange shirt is standing by the railroad tracks.
a man walks to work
The man is walking down steps in the first sentence. This does not mean he is walking to work.
exists e1 e2 s1 s2 x1 x2 x3 x4 x5 x6 x7.(n_track(x6) & of(x6,x7) & n_railroad(x7) & n_shirt(x4) & of(x4,x5) & n_orange(x5) & n_man(x1) & n_man(x1) & n_step(x3) & n_top(x2) & a_gray(s1) & Theme(s1,x2) & by(e2,x6) & Actor(e2,x1) & v_stand(e2) & in(x1,x4) & a_down(s2) & Manner(e1,s2) & Theme(e1,x3) & Actor(e1,x1) & v_walk(e1) & in(x1,x2))
exists e1 p1 x1.(Topic(e1,p1) & Actor(e1,x1) & v_walk(e1) & exists e2.(Actor(e2,x1) & v_work(e2)) & n_man(x1))