Question: what is the shelf life of a nicad battery
[{'answer': '1,000 cycles', 'provenance': [{'wikipedia_id': '186614', 'title': 'Nickel–cadmium battery', 'start_paragraph_id': 71, 'start_character': 538, 'end_paragraph_id': 71, 'end_character': 550, 'bleu_score': 1.0, 'section': 'Section::::Memory effect.\n'}]}, {'provenance': [{'wikipedia_id': '186614', 'title': 'Nickel–cadmium battery', 'start_paragraph_id': 71, 'start_character': 0, 'end_paragraph_id': 71, 'end_character': 753, 'bleu_score': 0.9845548242372031, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15193482027134623842}, 'section': 'Section::::Memory effect.\n'}]}]