Question: when was the texas rangers baseball team established
[{'answer': '1961', 'provenance': [{'wikipedia_id': '30857', 'title': 'Texas Rangers (baseball)', 'start_paragraph_id': 2, 'start_character': 33, 'end_paragraph_id': 2, 'end_character': 37, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '30857', 'title': 'Texas Rangers (baseball)', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 416, 'bleu_score': 0.8443022316802201, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2950832615126540651}, 'section': 'Section::::Abstract.'}]}]