Detailed Instructions: In this task, you are given a context paragraph, a question based on that and corresponding answer of a question. Your task is to generate supporting fact/knowledge from context paragraph which helps in answering a given question.
Problem:Frank E. Powell was a stage and silent film actor, screenwriter, and director in the United States. He was born in Hamilton, Ontario, Canada. Question: Stan Brakhage and Frank Powell are known for what kind of films? Answer: silent film
Solution:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Frank E. Powell was a stage and silent film actor, screenwriter, and director in the United States.