Restructuring

added features: quotes(book_title, large_context(4*more characters than the normal context), characters(book_title)

changed data type

changed data type

changed data type

changed data type

changed data type

changed data type

changed data type

changed data type

change data type

changed type of answer

Version angepasst

mention_answer zu dict(answer, answer_start, answer_end)

rename file