Question: how long dose it take for hair to grow
[{'answer': '6 inches per year .', 'provenance': [{'wikipedia_id': '26060462', 'title': 'Human hair growth', 'start_paragraph_id': 6, 'start_character': 344, 'end_paragraph_id': 6, 'end_character': 361, 'bleu_score': 0.668740304976422, 'section': 'Section::::Growth cycle.\n'}]}, {'provenance': [{'wikipedia_id': '26060462', 'title': 'Human hair growth', 'start_paragraph_id': 6, 'start_character': 0, 'end_paragraph_id': 6, 'end_character': 360, 'bleu_score': 0.9712154609069981, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14334702295123310283}, 'section': 'Section::::Growth cycle.\n'}]}]