Question: when did the drummer from def leppard lose his arm
[{'answer': '31 December 1984', 'provenance': [{'wikipedia_id': '1115467', 'title': 'Rick Allen (drummer)', 'start_paragraph_id': 5, 'start_character': 20, 'end_paragraph_id': 5, 'end_character': 36, 'bleu_score': 1.0, 'section': 'Section::::Accident and recovery.\n'}]}, {'provenance': [{'wikipedia_id': '1115467', 'title': 'Rick Allen (drummer)', 'start_paragraph_id': 5, 'start_character': 0, 'end_paragraph_id': 5, 'end_character': 664, 'bleu_score': 0.7942711698586521, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12524742305371414312}, 'section': 'Section::::Accident and recovery.\n'}]}]