Band conductor is conducting a band in an empty auditorium.
Band rehearses in empty auditorium.
An empty auditorium does not imply rehearses, it could be a performance with a no-show audience.
exists e1 s1 x1 x2 x3 x4.(Theme(e1,x3) & Actor(e1,x1) & v_conduct(e1) & in(x3,x4) & n_auditorium(x4) & a_empty(s1) & Theme(s1,x4) & n_band(x3) & n_conductor(x1) & (x1 = x2) & ne_nam_band(x2))
exists e1 s1 x1 x2.(ne_geo_band(x1) & in(e1,x2) & n_auditorium(x2) & a_empty(s1) & Theme(s1,x2) & Actor(e1,x1) & v_rehearse(e1))