A construction worker, with his back to the camera, standing in a cloud of dust.
The man is a railroad engineer.
a construction worker and a railroad engineer are two different careers
exists e1 x1 x2 x3 x4 x5 x6 x7.(n_camera(x4) & a_topic(x1) & in(e1,x6) & of(x6,x7) & n_dust(x7) & n_cloud(x6) & Actor(e1,x5) & v_stand(e1) & (x1 = x5) & with(x1,x3) & to(x3,x4) & n_back(x3) & of(x3,x1) & n_male(x1) & n_worker(x1) & of(x1,x2) & n_construction(x2))
exists p1 x1.(n_man(x1) & exists x2 x3.((x1 = x2) & n_engineer(x2) & of(x2,x3) & n_railroad(x3)))