Complex sentence: The Taotie are an alien species originating from a green meteor that crash-landed onto Gouwu Mountain two thousand years ago that the Chinese believe were sent from the gods to punish the Emperor for abusing his authority over the Middle Kingdom and the people.
Split into simpler sentences: The Taotie are an alien species originating from a green meteor that crash-landed onto Gouwu Mountain two thousand years ago. The Chinese believe the Taotie were sent from the gods to punish the Emperor for abusing his authority over the Middle Kingdom and the people.