You are given an open-domain question from an open movie database. Your task is to provide an answer to that question. Try to only include the answer. Do not put it in a sentence.

Example Input: which person wrote the movie The Flamingo Kid?
Example Output: Garry Marshall, Neal Marshall

Example Input: Otto Lang directed which movies?
Example Output: Love Is a Many-Splendored Thing

Example Input: how popular of a movie was Serial?
Example Output:
unknown