Question: what is the square mileage of puerto rico
[{'answer': '3,515 square miles'}, {'provenance': [{'wikipedia_id': '23461', 'title': 'Geography of Puerto Rico', 'start_paragraph_id': 1, 'start_character': 48, 'end_paragraph_id': 1, 'end_character': 753, 'bleu_score': 0.9304719420045001, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8426603523001840361}, 'section': 'Section::::Abstract.'}]}]