Question: who won the world series in the 1960s
[{'answer': 'Pittsburgh Pirates'}, {'answer': 'New York Yankees', 'provenance': [{'wikipedia_id': '7599168', 'title': 'List of World Series champions', 'start_paragraph_id': 3, 'start_character': 111, 'end_paragraph_id': 3, 'end_character': 127, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Los Angeles Dodgers', 'provenance': [{'wikipedia_id': '7599168', 'title': 'List of World Series champions', 'start_paragraph_id': 3, 'start_character': 284, 'end_paragraph_id': 3, 'end_character': 303, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'St. Louis Cardinals', 'provenance': [{'wikipedia_id': '7599168', 'title': 'List of World Series champions', 'start_paragraph_id': 3, 'start_character': 348, 'end_paragraph_id': 3, 'end_character': 367, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Baltimore Orioles'}, {'answer': 'Detroit Tigers'}, {'answer': 'New York Mets'}]