Question: how many roller coasters does silver dollar city have
[{'answer': '6', 'provenance': [{'wikipedia_id': '2706927', 'title': 'Silver Dollar City', 'start_paragraph_id': 1, 'start_character': 83, 'end_paragraph_id': 1, 'end_character': 84, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]