A crowd enjoying a musical band outdoors on a beautiful day.
The crowd is listening to a rock concert at a pavillion
The musical band does not have to be a rock band.  Just because the concert is outside does not mean that it is at a pavillion.
exists e1 s1 s2 x1 x2 x3 x4 x5.(a_topic(x1) & on(e1,x5) & n_day(x5) & a_beautiful(s2) & Theme(s2,x5) & Theme(e1,x3) & Actor(e1,x2) & v_enjoy(e1) & n_outdoors(x3) & of(x3,x4) & n_band(x4) & a_musical(s1) & Theme(s1,x3) & (x1 = x2) & n_crowd(x1))
exists e1 x1 x2 x3 x4.(n_crowd(x1) & to(e1,x2) & at(x2,x4) & n_pavillion(x4) & n_concert(x2) & of(x2,x3) & n_rock(x3) & Actor(e1,x1) & v_listen(e1))