A woman is looking through a microscope.
A woman doing an experiment.
Just because the woman is looking through a microscope, it doesn't mean that she is doing an experiment.
exists e1 x1 x2.(through(e1,x2) & n_microscope(x2) & Actor(e1,x1) & v_look(e1) & n_woman(x1))
exists e1 x1 x2 x3.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_do(e1) & n_experiment(x3) & (x1 = x2) & n_woman(x1))