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.

Context: The note the Duke & Duchess of Cambridge left with their bouquet at the #911Memorial. #RoyalVisitUSA 9/11 Memorial (@Sept11Memorial) December 9, 2014 Answer: bouquet
what did the duke & duchess leave with