Question: when did the new york yankees become a baseball team
[{'answer': '1901', 'provenance': [{'wikipedia_id': '4848143', 'title': 'New York Yankees', 'start_paragraph_id': 6, 'start_character': 11, 'end_paragraph_id': 6, 'end_character': 15, 'bleu_score': 1.0, 'section': 'Section::::History.\n'}]}, {'provenance': [{'wikipedia_id': '4848143', 'title': 'New York Yankees', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 674, 'bleu_score': 0.87188012162075, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5621820005205750612}, 'section': 'Section::::Abstract.'}]}]