A scientist in a lab coat is using a microscope.
A young woman sleeping.
The person can't be using a microscope and sleeping at the same time.
exists e1 x1 x2 x3 x4.(Theme(e1,x4) & Actor(e1,x1) & v_use(e1) & n_microscope(x4) & in(x1,x2) & n_coat(x2) & of(x2,x3) & n_lab(x3) & n_scientist(x1))
exists e1 s1 x1 x2.(a_topic(x1) & Actor(e1,x2) & v_sleep(e1) & (x1 = x2) & n_woman(x1) & a_young(s1) & Theme(s1,x1))