A scientist is looking into his microscope.
A scientist is mixing test tubes.
One does not mix test tubes while looking into a microscope
exists e1 x1 x2.(into(e1,x2) & n_microscope(x2) & of(x2,x1) & n_male(x1) & Actor(e1,x1) & v_look(e1) & n_scientist(x1))
exists e1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_mix(e1) & n_tube(x2) & of(x2,x3) & n_test(x3) & n_scientist(x1))