Question: What is the year of the event which occured first, Kellie Pickler's self title album was released, or The Best Days of Your Life was released?
{'answer': '2008', 'supporting_facts': [['Kellie Pickler (album)', 0], ['Kellie Pickler (album)', 2], ['Best Days of Your Life', 0], ['Best Days of Your Life', 1]]}