A band recording in the stdio with drums.
A band is playing on a stage.
One cannot be playing on stage and in the studio at he same time.
exists x1 x2 x3 x4.(n_stdio(x3) & a_topic(x1) & in(x1,x3) & with(x3,x4) & n_drum(x4) & n_recording(x1) & of(x1,x2) & n_band(x2))
exists e1 x1 x2.(on(e1,x2) & n_stage(x2) & Actor(e1,x1) & v_play(e1) & n_band(x1))