question: When did Hai Gaon refer to questions that had been addressed to him from Ashkenaz ?
answer: the first half of the 11th century
turker_answer: Hai Gaon referred to questions that had been addressed to him from Ashkenaz in the first half of the 11th century .
rule-based: Hai Gaon referred to questions that had been addressed to him from Ashkenaz in the first half of the 11th century .