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: Connect the dots: @OPCW sure chlorine used in #Syria, witnesses saw it dropped by helicopters,which only Assad has. Who's responsible? #UNSC Lithuania in UN NY (@LithuaniaUNNY) October 7, 2014 Answer: assad
Output:
who has helicopters that could be used on syria?