A band performing on stage.
A band is in the middle of their act on stage.
Another word for a band doing their act is performing.
exists e1 x1 x2 x3.(a_topic(x1) & on(e1,x3) & n_stage(x3) & Actor(e1,x2) & v_perform(e1) & (x1 = x2) & n_band(x1))
exists p1 x1 x2 x3 x4.(n_act(x4) & of(x4,x3) & n_thing(x3) & n_middle(x3) & on(p1,x2) & n_stage(x2) & in(x1,x3) & of(x3,x4) & n_band(x1))