Question: who plays brian in the life of brian
[{'answer': 'Graham Chapman', 'provenance': [{'wikipedia_id': '17920', 'title': "Monty Python's Life of Brian", 'start_paragraph_id': 1, 'start_character': 144, 'end_paragraph_id': 1, 'end_character': 158, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '17920', 'title': "Monty Python's Life of Brian", 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 448, 'bleu_score': 0.9346183847893801, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16239575747254886298}, 'section': 'Section::::Abstract.'}]}]