Question: what island is located off the boot toe of italy
[{'answer': 'The island of Sardinia', 'provenance': [{'wikipedia_id': '897351', 'title': 'Southern Italy', 'start_paragraph_id': 2, 'start_character': 412, 'end_paragraph_id': 2, 'end_character': 434, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '897351', 'title': 'Southern Italy', 'start_paragraph_id': 10, 'start_character': 0, 'end_paragraph_id': 10, 'end_character': 470, 'bleu_score': 0.76149028757234, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11152826365061072770}, 'section': 'Section::::Geography.\n'}]}]