Question: when did burma change its name to myanmar
[{'answer': '1989', 'provenance': [{'wikipedia_id': '2250710', 'title': 'Names of Myanmar', 'start_paragraph_id': 3, 'start_character': 121, 'end_paragraph_id': 3, 'end_character': 125, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '2250710', 'title': 'Names of Myanmar', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 273, 'bleu_score': 0.958740481558872, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15814435873461375332}, 'section': 'Section::::Abstract.'}]}]