Simplify the following text for a Grade 9 native English-speaking person.
Original: Most of the evidence comes from only a few vase paintings of the 5th century BC , such as one showing a mask of the god suspended from a tree with decorated robe hanging below it and dancing and the Pronomos vase , which depicts actors preparing for a Satyr play .
Simplified: Most of the evidence comes from a few vase paintings of the 5th century BC which depict actors preparing for a Satyr play .