Question: what is the purpose of hair on your head
[{'answer': 'heat insulation', 'provenance': [{'wikipedia_id': '14313', 'title': 'Hair', 'start_paragraph_id': 37, 'start_character': 129, 'end_paragraph_id': 37, 'end_character': 144, 'bleu_score': 1.0, 'section': 'Section::::Functions.:Warmth.\n'}]}, {'answer': 'protection from ultra-violet radiation exposure'}, {'answer': 'cooling ( when sweat evaporates from soaked hair )'}, {'provenance': [{'wikipedia_id': '14313', 'title': 'Hair', 'start_paragraph_id': 37, 'start_character': 0, 'end_paragraph_id': 37, 'end_character': 1181, 'bleu_score': 0.9557532135800301, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4003288506562752406}, 'section': 'Section::::Functions.:Warmth.\n'}]}]