Marching band holding flags entertain spectators in the bleachers.
The people in the bleachers are watching a demolition derby.
The people in the bleachers are either watching a Marching band entertain or a demolition derby.
exists e2 e3 e1 x1 x2 x3 x4.(n_bleacher(x4) & in(e3,x4) & Theme(e3,x3) & Actor(e3,x1) & v_entertain(e3) & n_spectator(x3) & n_flag(x1) & Actor(e2,x1) & v_hold(e2) & of(x1,x2) & n_band(x2) & Actor(e1,x1) & v_march(e1))
exists e1 x1 x2 x3 x4.(n_bleacher(x2) & n_people(x1) & Theme(e1,x3) & Actor(e1,x1) & v_watch(e1) & n_derby(x3) & of(x3,x4) & n_demolition(x4) & in(x1,x2))