Question: when was the first time the yankees won the world series
[{'answer': '1923', 'provenance': [{'wikipedia_id': '4848143', 'title': 'New York Yankees', 'start_paragraph_id': 2, 'start_character': 313, 'end_paragraph_id': 2, 'end_character': 317, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]