In this task you're given a question and you have to paraphrase the question to create the output question while retaining the meaning of the original question.
Q: Do/did castes (sub) systems exist (with) in/under Zoroastrianism? Who (effectively) liquidated/eradicated/abolished most of those (sub) systems?
A:
Do/did castes (sub) systems exist (with) in/under Buddhism? Who (effectively) liquidated/eradicated/abolished most of those (sub) systems?