Question: when did the angels became the los angeles angels
[{'answer': '1961', 'provenance': [{'wikipedia_id': '1360083', 'title': 'Los Angeles Angels', 'start_paragraph_id': 1, 'start_character': 372, 'end_paragraph_id': 1, 'end_character': 376, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1360083', 'title': 'Los Angeles Angels', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 946, 'bleu_score': 0.706511279879461, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3743139954738173549}, 'section': 'Section::::Abstract.'}]}]