The young man in the blue shirt holds the ladder for the man in the white shirt in a graffiti-covered alley.
Nobody has a shirt.
one is about a man while the other one is about nobody
exists e1 s1 s2 s3 s4 x1 x2 x3 x4.(n_shirt(x2) & n_shirt(x2) & a_white(s3) & Theme(s3,x2) & n_man(x1) & n_man(x1) & n_ladder(x3) & a_blue(s2) & Theme(s2,x2) & a_young(s1) & Theme(s1,x1) & Theme(e1,x3) & Actor(e1,x1) & v_hold(e1) & for(x3,x1) & in(x1,x2) & in(x1,x2) & in(x2,x4) & n_alley(x4) & a_graffiti-covered(s4) & Theme(s4,x4))
-exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_have(e1) & n_shirt(x2) & n_person(x1))