A man in orange is bent over welding something on the ground.
A man wearing orange does construction work.
Just because a man in orange is bent over welding something on the ground does not mean that he does construction work.
exists e1 s1 x1 x2 x3 x4.(n_ground(x4) & over(s1,e1) & on(e1,x4) & Theme(e1,x3) & Actor(e1,x1) & v_weld(e1) & n_thing(x3) & Theme(s1,x1) & a_bent(s1) & in(x1,x2) & n_orange(x2) & n_man(x1))
exists e2 e1 x1 x2 x3 x4 x5.(Theme(e2,x4) & Actor(e2,x1) & v_do(e2) & n_work(x4) & of(x4,x5) & n_construction(x5) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & n_orange(x3) & (x1 = x2) & n_man(x1))