Question: when was the pyramid added to the louvre
[{'answer': 'in 1989', 'provenance': [{'wikipedia_id': '3305865', 'title': 'Louvre Pyramid', 'start_paragraph_id': 1, 'start_character': 329, 'end_paragraph_id': 1, 'end_character': 336, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '3305865', 'title': 'Louvre Pyramid', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 383, 'bleu_score': 0.9699161750394991, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1963841804112500856}, 'section': 'Section::::Abstract.'}]}]