question: What was the one condition Japan wanted before accepting the Potsdam terms ?
answer: `` prerogative of His Majesty as a Sovereign Ruler ''
turker_answer: The one condition Japan wanted was the `` prerogative of His Majesty as a Sovereign Ruler '' before accepting the Potsdam terms .
rule-based: The one condition Japan was wanted `` prerogative of His Majesty as a Sovereign Ruler before accepting the Potsdam terms .