Question: who came up with the theory of crystallized vs fluid intelligence
[{'answer': 'Raymond Cattell', 'provenance': [{'wikipedia_id': '850107', 'title': 'Fluid and crystallized intelligence', 'start_paragraph_id': 1, 'start_character': 149, 'end_paragraph_id': 1, 'end_character': 164, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '850107', 'title': 'Fluid and crystallized intelligence', 'start_paragraph_id': 6, 'start_character': 0, 'end_paragraph_id': 6, 'end_character': 591, 'bleu_score': 0.9788329837059241, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13441686172257012609}, 'section': 'Section::::History.\n'}]}]