Question: how many seats are in the united states senate
[{'answer': '100', 'provenance': [{'wikipedia_id': '24909346', 'title': 'United States Senate', 'start_paragraph_id': 2, 'start_character': 392, 'end_paragraph_id': 2, 'end_character': 395, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]