A man is looking through a microscope and working on electronics.
A man is looking at bacteria under a microscope and working on his computer.
You can not infer it is bacteria.
exists e2 e1 x1 x2 x3 x4.(on(e2,x4) & n_electronics(x4) & Actor(e2,x3) & v_work(e2) & n_man(x3) & through(e1,x2) & n_microscope(x2) & Actor(e1,x1) & v_look(e1) & n_man(x1))
exists e2 e1 x1 x2 x3 x4 x5.(on(e2,x5) & n_computer(x5) & of(x5,x1) & n_male(x1) & Actor(e2,x4) & v_work(e2) & n_man(x4) & at(e1,x2) & under(x2,x3) & n_microscope(x3) & n_bacterium(x2) & Actor(e1,x1) & v_look(e1) & n_man(x1))