Question: how many republicans and how many democrats are in the senate
[{'answer': '54', 'provenance': [{'wikipedia_id': '30488502', 'title': '2016 United States Senate elections', 'start_paragraph_id': 3, 'start_character': 172, 'end_paragraph_id': 3, 'end_character': 174, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': '44', 'provenance': [{'wikipedia_id': '30488502', 'title': '2016 United States Senate elections', 'start_paragraph_id': 50, 'start_character': 31, 'end_paragraph_id': 50, 'end_character': 33, 'bleu_score': 1.0, 'section': 'Section::::Alaska.\n'}]}]