Question: who came up with the five factor model
[{'answer': 'J.M. Digman', 'provenance': [{'wikipedia_id': '1284664', 'title': 'Big Five personality traits', 'start_paragraph_id': 12, 'start_character': 144, 'end_paragraph_id': 12, 'end_character': 155, 'bleu_score': 1.0, 'section': 'Section::::Overview.\n'}]}, {'provenance': [{'wikipedia_id': '1284664', 'title': 'Big Five personality traits', 'start_paragraph_id': 12, 'start_character': 0, 'end_paragraph_id': 12, 'end_character': 449, 'bleu_score': 0.9720210313175831, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3316741697348306253}, 'section': 'Section::::Overview.\n'}]}]