Question: how many states are in the continental united states
[{'answer': '48', 'provenance': [{'wikipedia_id': '83759', 'title': 'Contiguous United States', 'start_paragraph_id': 1, 'start_character': 90, 'end_paragraph_id': 1, 'end_character': 92, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]