Question: how fast did bj penn get his black belt
[{'answer': 'in just under three years', 'provenance': [{'wikipedia_id': '1328244', 'title': 'B.J. Penn', 'start_paragraph_id': 67, 'start_character': 642, 'end_paragraph_id': 67, 'end_character': 667, 'bleu_score': 1.0, 'section': 'Section::::Legacy and influence.\n'}]}, {'provenance': [{'wikipedia_id': '1328244', 'title': 'B.J. Penn', 'start_paragraph_id': 67, 'start_character': 0, 'end_paragraph_id': 67, 'end_character': 949, 'bleu_score': 0.9870543337942441, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7406981049929726201}, 'section': 'Section::::Legacy and influence.\n'}]}]