Question: when was the first hip replacement surgery performed
[{'answer': '1891', 'provenance': [{'wikipedia_id': '1125423', 'title': 'Hip replacement', 'start_paragraph_id': 113, 'start_character': 81, 'end_paragraph_id': 113, 'end_character': 85, 'bleu_score': 1.0, 'section': 'Section::::History.\n'}]}, {'provenance': [{'wikipedia_id': '1125423', 'title': 'Hip replacement', 'start_paragraph_id': 113, 'start_character': 0, 'end_paragraph_id': 113, 'end_character': 255, 'bleu_score': 0.8723360571509821, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12673081711877334811}, 'section': 'Section::::History.\n'}]}]