most of all, they are famous for their poetry and storytelling, with legends of their culture and life being fassed down in the form of lengthy songs, poems, and stories.

with 명사 분사
독립분사구문인거 같은데요....
분사자리에 ing나 pp만 올수있는건 아닌가요 ?
being pp는 뭔지 모르겠어요
그리고 이건
어떻게 해석해야 하죠