The band the screaming orphans playing.
A band was playing.
The band was playing because the screaming orphans were playing.
exists e1 e2 x1 x2.(n_orphan(x2) & Actor(e1,x2) & v_scream(e1) & n_band(x1) & Time(e2,x1) & Actor(e2,x2) & v_play(e2))
exists e1 x1.(Actor(e1,x1) & v_play(e1) & n_band(x1))