The young man is waiting with others on the sidewalk.
There is a young person talking with others near the bustop
A person who is waiting is not necessarily talking. Not all sidewalks are near a bustop.
exists e1 s1 x1 x2 x3 x4.(n_sidewalk(x4) & n_person(x3) & n_man(x1) & a_young(s1) & Theme(s1,x1) & on(e1,x4) & with(e1,x2) & -(x2 = x3) & n_person(x2) & Actor(e1,x1) & v_wait(e1))
exists p1 x1 x5.(n_bustop(x5) & exists e1 s1 x2 x3 x4.((x1 = x2) & near(e1,x5) & with(e1,x4) & -(x4 = x2) & n_person(x2) & n_person(x4) & Actor(e1,x3) & v_talk(e1) & (x2 = x3) & n_person(x2) & a_young(s1) & Theme(s1,x2)))