A man working on something alone in an industrial setting.
An assembly line is made of robots except for one man monitoring the robotic arms.
Working on something does not imply there is an assembly line made of robots and that he is monitoring the robotic arms.
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 e2 s1 x1 x2 x3 x4 x5.(n_arm(x5) & a_robotic(s1) & Theme(s1,x5) & of(e1,x3) & Theme(e2,x5) & Actor(e2,x4) & v_monitor(e2) & (x3 = x4) & -exists x6.(for(x3,x6) & n_man(x6) & card_eq_1(x6)) & n_robot(x3) & Theme(e1,x1) & v_make(e1) & n_line(x1) & of(x1,x2) & n_assembly(x2))