Question: first president that was born in the us
[{'answer': 'Martin Van Buren', 'provenance': [{'wikipedia_id': '19763', 'title': 'Martin Van Buren', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 16, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '19763', 'title': 'Martin Van Buren', 'start_paragraph_id': 6, 'start_character': 0, 'end_paragraph_id': 6, 'end_character': 1182, 'bleu_score': 0.6207410948473531, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8966107060115714202}, 'section': 'Section::::Early life and education.\n'}]}]