Question: who has the most mvps in mlb history
[{'answer': 'New York Yankees', 'provenance': [{'wikipedia_id': '3858', 'title': 'Major League Baseball Most Valuable Player Award', 'start_paragraph_id': 5, 'start_character': 221, 'end_paragraph_id': 5, 'end_character': 237, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '3858', 'title': 'Major League Baseball Most Valuable Player Award', 'start_paragraph_id': 5, 'start_character': 0, 'end_paragraph_id': 5, 'end_character': 462, 'bleu_score': 0.740587215820075, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8616519973771313549}, 'section': 'Section::::Abstract.'}]}]