Question: who's playing in the world series and when is it
[{'answer': 'Houston Astros', 'provenance': [{'wikipedia_id': '50635427', 'title': '2017 World Series', 'start_paragraph_id': 1, 'start_character': 323, 'end_paragraph_id': 1, 'end_character': 337, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Los Angeles Dodgers', 'provenance': [{'wikipedia_id': '50635427', 'title': '2017 World Series', 'start_paragraph_id': 1, 'start_character': 265, 'end_paragraph_id': 1, 'end_character': 284, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'October 24 -- November 1'}, {'provenance': [{'wikipedia_id': '50635427', 'title': '2017 World Series', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 0, 'bleu_score': 1.0, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2292528824555401087}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '50635427', 'title': '2017 World Series', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 472, 'bleu_score': 0.955086048783738, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2292528824555401087}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '58062027', 'title': '2018 World Series', 'section': 'Section::::Background.\n', 'start_paragraph_id': 5, 'end_paragraph_id': 5, 'meta': {'evidence_span': ['Houston Astros', "The Boston Red Sox' most recent World Series appearance was their 2013 win over the St. Louis Cardinals. The Los Angeles Dodgers, who last won a World Series in 1988 over the Oakland Athletics, made their second consecutive appearance, after losing to the Houston Astros in 2017. The two franchises faced each other in the 1916 World Series; the Red Sox won the series in five games against the then-Brooklyn Robins. Red Sox manager Alex Cora and Dodgers manager Dave Roberts were teammates on the Dodgers in 2002, 2003, and 2004. Although they did not play together on the Red Sox, both managers", 'The Los Angeles Dodgers, who last won a World Series in 1988 over the Oakland Athletics, made their second consecutive appearance, after losing to the Houston Astros in 2017.']}}]}, {'provenance': [{'wikipedia_id': '50635427', 'title': '2017 World Series', 'section': 'Section::::Abstract.', 'start_paragraph_id': 1, 'end_paragraph_id': 1, 'meta': {'evidence_span': ['Houston Astros', 'The 2017 World Series was the championship series of Major League Baseball\'s (MLB) 2017 season. The 113th edition of the World Series, it was played between October 24 and November 1. The series was a best-of-seven playoff between the National League (NL) champion Los Angeles Dodgers and the American League (AL) champion Houston Astros. It was sponsored by the Internet television service YouTube TV and officially known as the "2017 World Series presented by YouTube TV".', 'The series was a best-of-seven playoff between the National League (NL) champion Los Angeles Dodgers and the American League (AL) champion Houston Astros.']}}]}]