Complex sentence: The Autumn festival is centered on the Sakurayama Hachiman-gu (桜山八幡宮) or Shrine and is referred to as the Hachiman Festival and is held after the crops are harvested.
Split into simpler sentences: The Autumn festival is centered on the Sakurayama Hachiman Shrine and is referred to as the Hachiman Festival. It is held after the crops are harvested.