Question: how far is it from spain to africa
[{'answer': '8.9 mi'}, {'provenance': [{'wikipedia_id': '28181', 'title': 'Strait of Gibraltar', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 429, 'bleu_score': 0.643188507553281, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12220345814131535899}, 'section': 'Section::::Abstract.'}]}]