A man wrapped up in a white mask, glasses, and a hat is working with a tool on a metal plate.
The man's face is unobscured.
To be not obscured one would not wear a mask.
exists e1 e2 s1 s2 x1 x2 x3 x4 x5 x6 x7.(with(e2,x5) & on(x5,x6) & n_plate(x6) & of(x6,x7) & n_metal(x7) & n_tool(x5) & Actor(e2,x4) & v_work(e2) & n_hat(x4) & in(e1,x2) & rel(x2,x3) & n_glass(x3) & n_mask(x2) & a_white(s2) & Theme(s2,x2) & a_up(s1) & Manner(e1,s1) & Actor(e1,x1) & v_wrap(e1) & n_man(x1))
exists s1 x1 x2.(n_face(x2) & of(x2,x1) & n_man(x1) & Theme(s1,x2) & a_unobscured(s1))