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.
--------
Question: Context: Hillary Clinton does not deserve the speech Michelle just gave her. Hit it out of the ballpark. Meghan McCain (@MeghanMcCain) July 26, 2016 Answer: michelle obama

Answer: who gave the speech

Question: Context: Scary moment we #CHI fans just broke down a barrier and stormed stadium. Sam Laird (@samcmlaird) June 18, 2014 Answer: barrier

Answer: what did they break in order to get to the stadium?

Question: Context: This was my 61st U.S. Open, and one of the most dominating performances. Well done, Martin Kaymer. Dan Jenkins (@danjenkinsgd) June 15, 2014 Answer: the 61st

Answer:
which u.s. open is it that they are referring to?