There is a man dressed in black walking past the subway as people are getting off.
the man in black is making people uncomfortable
A man simply walking past the subway as people are getting off does not describe why he is making people uncomfortable.
exists p1 x1 x5.(n_subway(x5) & exists e1 p2 s1 x2 x3 x4.((x1 = x2) & exists e2 s2 x6.(a_off(s2) & Manner(e2,s2) & Actor(e2,x6) & v_get(e2) & n_people(x6)) & as(e1,p2) & past(e1,x5) & in(e1,x4) & n_walking(x4) & a_black(s1) & Theme(s1,x4) & Theme(e1,x3) & v_dress(e1) & (x2 = x3) & n_man(x2)))
exists e1 p1 x1 x2 x3.(n_man(x1) & exists s1.(Theme(s1,x3) & a_uncomfortable(s1)) & Recipient(e1,p1) & Actor(e1,x1) & Topic(e1,x3) & v_make(e1) & n_people(x3) & in(x1,x2) & n_black(x2))