A smiling black man is standing on the street.
smiling black man is standing on the street singing for tips.
A smiling black man standing on the street doesn't imply he is singing, and doesn't imply that he is doing anything for tips.
exists e1 e2 s1 x1 x2.(n_street(x2) & on(e2,x2) & Actor(e2,x1) & v_stand(e2) & n_man(x1) & a_black(s1) & Theme(s1,x1) & Actor(e1,x1) & v_smile(e1))
exists e1 e2 e3 s1 x1 x2 x3 x4.(n_street(x3) & for(e2,e3) & for(e3,x4) & n_tip(x4) & Actor(e3,e1) & v_sing(e3) & on(e2,x3) & Actor(e2,e1) & v_stand(e2) & Theme(e1,x2) & Actor(e1,x1) & v_smile(e1) & n_man(x2) & a_black(s1) & Theme(s1,x2) & n_thing(x1))