Question: who has won most mlb all star games
[{'answer': 'American League', 'provenance': [{'wikipedia_id': '13912846', 'title': 'List of Major League Baseball All-Star Games', 'start_paragraph_id': 1, 'start_character': 98, 'end_paragraph_id': 1, 'end_character': 113, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]