Question: When did hurricane irene hit the united states?
qaPairs: question: When did hurricane irene hit the united states in 1999?
answer: October 15
October 15, 1999
question: When did hurricane irene hit the mainland united states in 2011?
answer: August 27, 2011
August 27
question: When did hurricane irene hit Saint Croix in the U.S. Virgin Islands in 2011?
answer: August 22
August 22, 2011