Question: the united states senate represents which branch of government
[{'answer': 'the legislature', 'provenance': [{'wikipedia_id': '24909346', 'title': 'United States Senate', 'start_paragraph_id': 1, 'start_character': 165, 'end_paragraph_id': 1, 'end_character': 180, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '24909346', 'title': 'United States Senate', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 201, 'bleu_score': 0.9383861709333501, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11479116484063656479}, 'section': 'Section::::Abstract.'}]}]