A man wearing a orange work vest is using a device to work on railing for public transit, in the city.
a man is working
A man wearing a orange work vest is a type of man, and using a device is working.
exists e2 e1 p1 x1 x2 x3 x4 x5 x6 x9.(n_city(x9) & Theme(e2,p1) & Recipient(e2,x6) & Actor(e2,x1) & v_use(e2) & exists e4 e3 s1 x7 x8.(in(e3,x9) & on(e3,e4) & for(e4,x8) & n_transit(x8) & a_public(s1) & Theme(s1,x8) & Actor(e4,x7) & v_rail(e4) & Actor(e3,x1) & v_work(e3)) & n_device(x6) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & n_vest(x3) & of(x3,x5) & n_work(x5) & of(x3,x4) & n_orange(x4) & (x1 = x2) & n_man(x1))
exists e1 x1.(Actor(e1,x1) & v_work(e1) & n_man(x1))