Question: when was the last time the dodgers played yankees in the world series
[{'answer': '1981', 'provenance': [{'wikipedia_id': '6641267', 'title': 'Dodgers–Yankees rivalry', 'start_paragraph_id': 26, 'start_character': 53, 'end_paragraph_id': 26, 'end_character': 57, 'bleu_score': 1.0, 'section': 'Section::::Dodgers move to Los Angeles.:1963: Los Angeles Dodger win.\n'}]}, {'provenance': [{'wikipedia_id': '6641267', 'title': 'Dodgers–Yankees rivalry', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 978, 'bleu_score': 0.7102642556730521, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8585587541411477815}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '6641267', 'title': 'DodgersYankees rivalry', 'section': 'Section::::Dodgers move to Los Angeles.:1963: Los Angeles Dodger win.\n', 'start_paragraph_id': 26, 'end_paragraph_id': 26, 'meta': {'evidence_span': ['World Series appearances in the 1970s and 1981.', 'World Series appearances in the 1970s and 1981']}}]}, {'provenance': [{'wikipedia_id': '6641267', 'title': 'DodgersYankees rivalry', 'section': 'Section::::World Series appearances in the 1970s and 1981.:1981: Changing of the Guard.\n', 'start_paragraph_id': 35, 'end_paragraph_id': 35, 'meta': {'evidence_span': ['This led to the Yankees not winning a World Series in the 1980s, the only decade they would not have won a championship since moving to the Bronx. In contrast, the Dodgers were able to defeat the Oakland Athletics in the 1988 World Series. It would be their last post-season meeting to date, the last time ever the Dodgers visited the old Yankee Stadium, and the last meeting between teams from New York City and Los Angeles for a major professional sports championship until the Rangers and the Kings squared off in the 2014 Stanley Cup Finals. Although the Yankees and the Dodgers have not met in the playoffs since the 1981 World Series, interleague matchups between the two teams, whether in New York or Los Angeles', 'Although the Yankees and the Dodgers have not met in the playoffs since the 1981 World Series']}}]}]