question: What event soured relations of US and Egypt in 2013 ?
answer: Egypt 's violent crackdown on the Muslim Brotherhood and its supporters
turker_answer: Egypt 's violent crackdown on the Muslim Brotherhood and its supporters soured relations of US and Egypt in 2013 .
rule-based: Egypt 's violent crackdown on the Muslim Brotherhood and its supporters soured relations of US and Egypt in 2013 .