Question: who is directly elected according to the constitution
[{'answer': 'senators', 'provenance': [{'wikipedia_id': '31669', 'title': 'Seventeenth Amendment to the United States Constitution', 'start_paragraph_id': 1, 'start_character': 127, 'end_paragraph_id': 1, 'end_character': 135, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '31669', 'title': 'Seventeenth Amendment to the United States Constitution', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 0, 'bleu_score': 1.0, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 910663231309363264}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '31669', 'title': 'Seventeenth Amendment to the United States Constitution', 'start_paragraph_id': 23, 'start_character': 0, 'end_paragraph_id': 23, 'end_character': 215, 'bleu_score': 0.9364250605898111, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 910663231309363264}, 'section': 'Section::::Proposal and ratification.:Proposal in Congress.\n'}]}, {'provenance': [{'wikipedia_id': '31646', 'title': 'Article One of the United States Constitution', 'section': 'Section::::Abstract.', 'start_paragraph_id': 2, 'end_paragraph_id': 2, 'meta': {'evidence_span': ['Section 3 originally required that the state legislatures elect the members of the Senate, but the Seventeenth Amendment, ratified in 1913, provides for the direct election of senators.', 'Section 3 originally required that the state legislatures elect the members of the Senate, but the Seventeenth Amendment, ratified in 1913, provides for the direct election of senators.', 'Amendment, ratified in 1913, provides for the direct election of senators.']}}]}, {'provenance': [{'wikipedia_id': '31669', 'title': 'Seventeenth Amendment to the United States Constitution', 'section': 'Section::::Abstract.', 'start_paragraph_id': 1, 'end_paragraph_id': 1, 'meta': {'evidence_span': ['The Seventeenth Amendment (Amendment XVII) to the United States Constitution established the popular election of United States senators by the people of the states.', 'The Seventeenth Amendment (Amendment XVII) to the United States Constitution established the popular election of United States senators by the people of the states.']}}]}]