Question: who was the first woman to be elected to the senate
[{'answer': 'Hattie Caraway', 'provenance': [{'wikipedia_id': '1156180', 'title': 'Women in the United States Senate', 'start_paragraph_id': 1, 'start_character': 250, 'end_paragraph_id': 1, 'end_character': 264, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1156180', 'title': 'Women in the United States Senate', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 610, 'bleu_score': 0.5896508178587501, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11956250113938359275}, 'section': 'Section::::Abstract.'}]}]