question: By what year was it argued that the Ottoman empire was merely `` a shadow '' of what it was in 1566 ?
answer: 1699
turker_answer: By 1699 it was argued that the Ottoman empire was merely `` a shadow '' of what it was in 1566 .
rule-based: It was argued that the Ottoman empire was merely `` a shadow '' of what it was in 1566 by 1699 .