Question: Who won the afc championship game this year?

Disambiguated questions and answers:
context: Every current AFC team except the Houston Texans has played in an AFC Championship Game at least once. The Seattle Seahawks, who have been members in both the AFC and the NFC, hold the distinction of appearing in both conference title games, a loss in the AFC conference title game to the Los Angeles Raiders for Super Bowl XVIII and, in their first appearance in a NFC conference title game, a win over the Carolina Panthers for Super Bowl XL. The Pittsburgh Steelers have the most appearances in the AFC Championship Game at 16, with 11 of those games being in Pittsburgh, the most for either conference. The New England Patriots have won the most AFC Championships at 11, and have played in a record eight straight AFC title games (2011–2018). Between Peyton Manning, Tom Brady and Ben Roethlisberger, at least one of the three quarterbacks has been in ever championship game between the 2003 and the 2018 seasons.
question: Who won the AFC Championship Game in the 2017 NFL season?
short_answers: New England Patriots
wikipage: AFC Championship Game
context: Every current AFC team except the Houston Texans has played in an AFC Championship Game at least once. The Seattle Seahawks, who have been members in both the AFC and the NFC, hold the distinction of appearing in both conference title games, a loss in the AFC conference title game to the Los Angeles Raiders for Super Bowl XVIII and, in their first appearance in a NFC conference title game, a win over the Carolina Panthers for Super Bowl XL. The Pittsburgh Steelers have the most appearances in the AFC Championship Game at 16, with 11 of those games being in Pittsburgh, the most for either conference. The New England Patriots have won the most AFC Championships at 11, and have played in a record eight straight AFC title games (2011–2018). Between Peyton Manning, Tom Brady and Ben Roethlisberger, at least one of the three quarterbacks has been in ever championship game between the 2003 and the 2018 seasons.
question: Who won the AFC Championship Game in the 2016 NFL season?
short_answers: New England Patriots
wikipage: AFC Championship Game
context: No context provided
question: Who won the AFC Championship Game in the 2015 NFL season?
short_answers: Denver Broncos

Long-form answers:
knowledge: content: The AFC Championship Game is the annual championship game of the American Football Conference (AFC) and one of the two semi-final playoff games of the National Football League (NFL), the largest professional American football league in the United States.
wikipage: AFC Championship Game
content: The game was established as part of the 1970 merger between the NFL and the American Football League (AFL), with the merged league realigning into two conferences. 
wikipage: AFC Championship Game
long_answer: The AFC Championship Game is the annual championship game of the American Football Conference (AFC) and one of the two semi-final playoff games of the National Football League (NFL). The game was established as part of the 1970 merger between the NFL and the American Football League (AFL), with the merged league realigning into two conferences.  The 2016 and 2017 winner was the New England Patriots. The 2015 winner was the Denver Broncos.