Question: how many seats do the democrats hold in the senate
[{'answer': '46', 'provenance': [{'wikipedia_id': '30488502', 'title': '2016 United States Senate elections', 'start_paragraph_id': 134, 'start_character': 60, 'end_paragraph_id': 134, 'end_character': 62, 'bleu_score': 1.0, 'section': 'Section::::Missouri.\n'}]}]