This man with a white hard hat, and gray vest, and long-sleeve shirt is standing on top of a roof.
The city worker prepares to work on the power line above the house.
standing doesn't always mean  prepares
exists e1 s1 s2 s3 s4 x1 x2 x3 x4 x5 x6 x7 x8.(n_man(x2) & on(e1,x7) & of(x7,x8) & n_roof(x8) & n_top(x7) & Actor(e1,x1) & v_stand(e1) & subset_of(x6,x1) & n_shirt(x6) & a_long-sleeve(s4) & Theme(s4,x6) & subset_of(x2,x1) & with(x2,x3) & subset_of(x5,x3) & n_vest(x5) & a_gray(s3) & Theme(s3,x5) & subset_of(x4,x3) & n_hat(x4) & a_hard(s2) & Theme(s2,x4) & a_white(s1) & Theme(s1,x4))
exists e1 p1 x1 x2 x3 x4 x5.(n_house(x5) & n_line(x3) & of(x3,x4) & n_power(x4) & n_worker(x1) & of(x1,x2) & n_city(x2) & Topic(e1,p1) & Actor(e1,x1) & v_prepare(e1) & exists e2.(on(e2,x3) & above(x3,x5) & Actor(e2,x1) & v_work(e2)))