Question: which phase of healing begins about 3 weeks after injury
[{'answer': 'the maturation phase', 'provenance': [{'wikipedia_id': '514458', 'title': 'Wound healing', 'start_paragraph_id': 78, 'start_character': 65, 'end_paragraph_id': 78, 'end_character': 85, 'bleu_score': 1.0, 'section': 'Section::::Maturation and remodeling.\n'}]}, {'provenance': [{'wikipedia_id': '514458', 'title': 'Wound healing', 'start_paragraph_id': 78, 'start_character': 0, 'end_paragraph_id': 78, 'end_character': 612, 'bleu_score': 0.9531501622378341, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 10088538091041638257}, 'section': 'Section::::Maturation and remodeling.\n'}]}]