Question: Who has won the last 10 world series?

Disambiguated questions and answers:
context: The Houston Astros won the 2017 World Series in 7 games against the Los Angeles Dodgers on November 1, 2017, winning their first World Series since their creation in 1962.
question: Who won the 2017 MLB World Series?
short_answers: Astros
Houston Astros
Houston
wikipage: World Series
context: The events of the 1919 Series, segueing into the "live ball" era, marked a point in time of change of the fortunes of several teams. The two most prolific World Series winners to date, the New York Yankees and the St. Louis Cardinals, did not win their first championship until the 1920s; and three of the teams that were highly successful prior to 1920 (the Boston Red Sox, Chicago White Sox and the Chicago Cubs) went the rest of the 20th century without another World Series win. The Red Sox and White Sox finally won again in 2004 and 2005, respectively. The Cubs had to wait over a century (until the 2016 season) for their next trophy. They did not appear in the Fall Classic from 1945 until 2016, the longest drought of any MLB club.
question: Who won the 2016 MLB World Series?
short_answers: Chicago Cubs
Chicago
Cubs
wikipage: World Series
context: The number of teams was unchanged until 1961, with fourteen expansion teams joining MLB since then, all of which except the Seattle Mariners have appeared in at least one World Series. Of the 23 Series in which at least one expansion team has played, including two Series (2015 and 2019) in which both teams were expansion teams, expansion teams have won 11 of them, which is 47.8% of all series in which an expansion team played and 9.5% of all 115 series played since 1903. In 2015, the first World Series featuring only expansion teams was played between the Kansas City Royals and New York Mets.
question: Who won the 2015 MLB World Series?
short_answers: Kansas City Royals
Royals
Kansas City
wikipage: World Series
context: No context provided
question: Who won the 2017 College World Series?
short_answers: Florida
context: No context provided
question: Who won the 2016 College World Series?
short_answers: Coastal Carolina
context: No context provided
question: Who won the 2015 College World Series?
short_answers: Virginia

Long-form answers:
knowledge: content: The World Series is the annual championship series of Major League Baseball (MLB) in the United States and Canada, contested since 1903 between the champion teams of the American League (AL) and the National League (NL). The winner of the World Series championship is determined through a best-of-seven playoff, and the winning team is awarded the Commissioner's Trophy.[1]
wikipage: World Series
long_answer: The World Series is the annual championship series of Major League Baseball (MLB) in the United States and Canada, contested since 1903 between the champion teams of the American League and the National League. The winner of the World Series championship is determined through a best-of-seven playoff, and the winning team is awarded the Commissioner's Trophy. In 2015, the Kansas City Royals won the MLB World Series and Virginia won the College World Series. In 2016, the Chicago Cubs won the MLB world series and Coastal Carolina won the 2016 College World Series. In 2017, the Houston Astros won the MLB World Series and Florida won the College World Series.