Question: what military hero from the mexican war became potus
[{'answer': 'Zachary Taylor', 'provenance': [{'wikipedia_id': '19729624', 'title': 'Zachary Taylor', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 14, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '19729624', 'title': 'Zachary Taylor', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 615, 'bleu_score': 0.7500492573982871, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4671100583154197619}, 'section': 'Section::::Abstract.'}]}]