Question: who played nixon in days of future past
[{'answer': 'Mark Camacho', 'provenance': [{'wikipedia_id': '36613262', 'title': 'X-Men: Days of Future Past', 'start_paragraph_id': 32, 'start_character': 381, 'end_paragraph_id': 32, 'end_character': 393, 'bleu_score': 1.0, 'section': 'Section::::Cast.\n'}]}, {'provenance': [{'wikipedia_id': '36613262', 'title': 'X-Men: Days of Future Past', 'start_paragraph_id': 32, 'start_character': 0, 'end_paragraph_id': 32, 'end_character': 618, 'bleu_score': 0.8668945371053101, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3960368438726266952}, 'section': 'Section::::Cast.\n'}]}]