question: Up until what month and year of release are films from Metro-Goldwyn-Mayer part of the Turner Entertainment library ?
answer: May 1986
turker_answer: Up until May 1986 of release are films from Metro-Goldwyn-Mayer part of the Turner Entertainment library .
rule-based: Up until May 1986 are films from Metro-Goldwyn-Mayer part of the Turner Entertainment library .