Detailed Instructions: In this task, you are given a context tweet and an answer. Your job is to generate a question for the given answer based on the given tweet paragraph. Note that your question should be answerable based on the given tweet, and the answer to your question should be the given answer.
Q: Context: Spotted along Obama motorcade route in Denver: Bearded dude holding "Free weed 4 Obama" sign Steve Holland (@steveholland1) July 9, 2014 Answer: free weed 4 obama
A:
what did his sign say?