Woman giving a presentation about a Chevrolet car.
A woman is advertising the new BMW m series
One cannot be doing a presentation about a Chevrolet and a BMW at the same time.
exists e1 x1 x2 x3 x4.(ne_nam_woman(x1) & Theme(e1,x2) & Actor(e1,x1) & v_give(e1) & about(x2,x3) & n_car(x3) & of(x3,x4) & n_chevrolet(x4) & n_presentation(x2))
exists e1 s1 x1 x2 x3 x4.(n_series(x2) & of(x2,x4) & n_m(x4) & (x2 = x3) & ne_org_bmw(x3) & a_new(s1) & Theme(s1,x2) & Theme(e1,x2) & Actor(e1,x1) & v_advertise(e1) & n_woman(x1))