Question: who plays snape in the harry potter movies
[{'answer': 'Alan Sidney Patrick Rickman', 'provenance': [{'wikipedia_id': '39879', 'title': 'Alan Rickman', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 27, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '39879', 'title': 'Alan Rickman', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 528, 'bleu_score': 0.568520336723875, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8273540381940843570}, 'section': 'Section::::Abstract.'}]}]