Guy in blue jacket and hat standing in front of some type of machinery while starring up with a big smile.
Laborer works his machine
A guy who is standing and smiling in front of a machine does not necessarily mean that he is a laborer who is working.
(-x)
exists e1 x1 x2.(n_machine(x2) & of(x2,x1) & n_male(x1) & ne_nam_laborer(x1) & Theme(e1,x2) & Actor(e1,x1) & v_work(e1))