Question: who was the president during the building of panama canal
[{'answer': 'Theodore Roosevelt', 'provenance': [{'wikipedia_id': '24849', 'title': 'Panama Canal', 'start_paragraph_id': 25, 'start_character': 437, 'end_paragraph_id': 25, 'end_character': 455, 'bleu_score': 1.0, 'section': 'Section::::History.:United States acquisition.\n'}]}, {'provenance': [{'wikipedia_id': '24849', 'title': 'Panama Canal', 'start_paragraph_id': 25, 'start_character': 0, 'end_paragraph_id': 25, 'end_character': 625, 'bleu_score': 0.706821611126028, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1715028080042947672}, 'section': 'Section::::History.:United States acquisition.\n'}]}]