Question: Alan Sidney Patrick Rickman was an English actor who gained wider notice for his film performance as a fictional character in a film series who becomes a double-agen on behalf of who?
{'answer': 'Albus Dumbledore', 'supporting_facts': [['Alan Rickman', 0], ['Alan Rickman', 3], ['Severus Snape', 0], ['Severus Snape', 4]]}