Question: In what year was the band behind the Evil Empire Tour nominated for a Grammy Award for Best Rock Album?
{'answer': '2001', 'supporting_facts': [['Evil Empire Tour', 0], ['Evil Empire Tour', 1], ['Evil Empire Tour', 2], ['The Battle of Los Angeles (album)', 0], ['The Battle of Los Angeles (album)', 1], ['The Battle of Los Angeles (album)', 2], ['The Battle of Los Angeles (album)', 3]]}