question: When was an accidental email sent to potential students of Eton that warranted a personal apology to each family ?
answer: July 2015
turker_answer: In July 2015 , an accidental email sent to potential students of Eton that warranted a personal apology to each family .
rule-based: An accidental email sent to potential students of Eton that warranted a personal apology to each family was in July 2015 .