Question: what happens to the crystallized intelligence as one goes from young adulthood to middle adulthood
[{'answer': 'stays relatively stable', 'provenance': [{'wikipedia_id': '850107', 'title': 'Fluid and crystallized intelligence', 'start_paragraph_id': 25, 'start_character': 376, 'end_paragraph_id': 25, 'end_character': 399, 'bleu_score': 1.0, 'section': 'Section::::Development and physiology.\n'}]}, {'provenance': [{'wikipedia_id': '850107', 'title': 'Fluid and crystallized intelligence', 'start_paragraph_id': 25, 'start_character': 0, 'end_paragraph_id': 25, 'end_character': 815, 'bleu_score': 0.937415241083676, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9962708425828151099}, 'section': 'Section::::Development and physiology.\n'}]}]