Question: when was briggs stadium changed to tiger stadium
[{'answer': '1961', 'provenance': [{'wikipedia_id': '329275', 'title': 'Tiger Stadium (Detroit)', 'start_paragraph_id': 8, 'start_character': 409, 'end_paragraph_id': 8, 'end_character': 413, 'bleu_score': 1.0, 'section': 'Section::::History.:Origins.\n'}]}, {'provenance': [{'wikipedia_id': '329275', 'title': 'Tiger Stadium (Detroit)', 'start_paragraph_id': 8, 'start_character': 0, 'end_paragraph_id': 8, 'end_character': 603, 'bleu_score': 0.956842011126466, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4944649711994114361}, 'section': 'Section::::History.:Origins.\n'}]}]