Definition: 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.
Input: Context: #RDR2014 Early start for all technical teams! The 9 @IMOCA60 boats left the docks at 0415 CET! Well done boys! OCEAN MASTERS (@OMchampionship) November 2, 2014 Answer: 9
Output:
how many boats left the dock?