Question: who played lorenzo bartolini in letters to juliet
[{'answer': 'Franco Nero', 'provenance': [{'wikipedia_id': '25698427', 'title': 'Letters to Juliet', 'start_paragraph_id': 1, 'start_character': 149, 'end_paragraph_id': 1, 'end_character': 160, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '25698427', 'title': 'Letters to Juliet', 'start_paragraph_id': 10, 'start_character': 0, 'end_paragraph_id': 10, 'end_character': 272, 'bleu_score': 0.9529077664391161, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15392872205957681458}, 'section': 'Section::::Cast.\n'}]}]