Complex sentence: Narratives of the stories of the genocide are passed down from generation to generation in order for the story to continue to live on and so that the children of future generations can find their sense of ethnic identity through it.
Split into simpler sentences: Narratives of the stories of the genocide are passed down from generation to generation in order for the story to continue to live on. It also allowed the children of future generations to find their sense of ethnic identity through it.