What are the two signs of the prosperity of poetry in the prosperous Tang Dynasty?

The teacher said more than two things before. It is estimated that it will be discussed separately after integration. Write it here for reference o (∩ _ ∩) o.

1. There are a lot of writers' works. Besides scholars and officials, the authors range from emperors to businessmen, monks, Taoist priests, nuns, prostitutes (hotel artists), as well as ethnic minorities and foreigners.

2. The content is rich and colorful, with a broad social life and a rich and secret inner world.

3. The genre is complete and the art is perfect. Various genres of China's ancient poetry (except lyrics and songs) had matured in the Tang Dynasty.

4. Great poets like Li Bai and Du Fu and a large number of outstanding poets have appeared.

5. There are different schools.