Question: who played the brain in pinky and the brain
[{'answer': 'Rob Paulsen', 'provenance': [{'wikipedia_id': '21684014', 'title': 'Pinky and the Brain', 'start_paragraph_id': 13, 'start_character': 17, 'end_paragraph_id': 13, 'end_character': 28, 'bleu_score': 1.0, 'section': 'Section::::Characters.:Pinky.\n'}]}, {'provenance': [{'wikipedia_id': '21684014', 'title': 'Pinky and the Brain', 'start_paragraph_id': 13, 'start_character': 0, 'end_paragraph_id': 13, 'end_character': 953, 'bleu_score': 0.875648325590171, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7448529075661884647}, 'section': 'Section::::Characters.:Pinky.\n'}]}]