Question: who was president when yosemite became a national park
[{'answer': 'Abraham Lincoln', 'provenance': [{'wikipedia_id': '48664', 'title': 'Yosemite National Park', 'start_paragraph_id': 2, 'start_character': 412, 'end_paragraph_id': 2, 'end_character': 427, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '48664', 'title': 'Yosemite National Park', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 680, 'bleu_score': 0.7593648273240581, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9674006533965744335}, 'section': 'Section::::Abstract.'}]}]