Two males playing at a jazz concert.
A classroom studies music history.
One cannot be playing a jazz concert and studies music history at the same time.
exists e1 x1 x2 x3 x4.(a_topic(x1) & at(e1,x3) & n_concert(x3) & of(x3,x4) & n_jazz(x4) & Actor(e1,x2) & v_play(e1) & (x1 = x2) & n_male(x1) & card_eq_2(x1))
exists x1 x2 x3 x4.(a_topic(x1) & Time(x1,x4) & n_history(x4) & n_music(x1) & of(x1,x3) & n_study(x3) & of(x1,x2) & n_classroom(x2))