Question: which type of memory shows a much greater decline with age than others
[{'answer': 'episodic memory', 'provenance': [{'wikipedia_id': '4402098', 'title': 'Memory and aging', 'start_paragraph_id': 5, 'start_character': 604, 'end_paragraph_id': 5, 'end_character': 619, 'bleu_score': 1.0, 'section': 'Section::::Mild cognitive impairment.\n'}]}, {'provenance': [{'wikipedia_id': '4402098', 'title': 'Memory and aging', 'start_paragraph_id': 7, 'start_character': 0, 'end_paragraph_id': 7, 'end_character': 666, 'bleu_score': 0.9563334828258161, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 10368888683476169935}, 'section': 'Section::::Normal aging.\n'}]}]