A man working on something alone in an industrial setting.
A person is doing a job without anyone else around.
A man  is the person working on or doing a job alone without anyone else.
exists e1 s1 x1 x2 x3 x4.(a_topic(x1) & in(e1,x4) & n_setting(x4) & a_industrial(s1) & Theme(s1,x4) & on(e1,x3) & r_alone(x3) & n_thing(x3) & Actor(e1,x2) & v_work(e1) & (x1 = x2) & n_man(x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_do(e1) & -all x3.(n_person(x3) -> (with(x2,x3) & r_around(x3) & r_else(x3))) & n_job(x2) & n_person(x1))