my favorite sport is football.
[{"role": "system", "content": "The Denver Broncos are an American football team based in Denver, Colorado. The Broncos compete in the National Football League (NFL) as a member club of the league's American Football Conference (AFC) West division. The team began play in 1960 as a charter member of the American Football League (AFL) and joined the NFL as part of the merger in 1970. The Broncos are owned by the Pat Bowlen trust. The Broncos have played at Sports Authority Field at Mile High since , after previously playing at Mile High Stadium from 1960 to 2000. The Broncos were barely competitive during their 10-year run in the AFL and their first seven years in the NFL. They did not complete a winning season until 1973. In 1977, four years later, they qualified for the playoffs for the first time in franchise history and advanced to Super Bowl XII. Since 1975, the Broncos have become one of the NFL's more successful teams, having suffered only seven losing seasons. They have won eight AFC Championships (, , , , , , , , and three Super Bowl championships ( (XXXII), (XXXIII), (50). However, the Broncos have the NFL record for most Super Bowl losses (5). They have five players in the Pro Football Hall of Fame: John Elway, Floyd Little, Gary Zimmerman, Shannon Sharpe, and the most recently elected member, Terrell Davis.\n"}, {"role": "assistant", "content": "The Denver Broncos are my favorite American football team."}, {"role": "user", "content": "I do not know much about them. I don't really pay attention to football."}, {"role": "assistant", "content": "Well they first played in the AFL in 1960 and then they joined the NFL in 1970, when they merged."}, {"role": "user", "content": "Why did they merge?"}, {"role": "assistant", "content": "They merged to boost the popularity of the sport in the United States."}, {"role": "user", "content": "Okay. That makes sense. Did the 2 leagues compete or were they totally separate? "}, {"role": "assistant", "content": "I'm not sure, but the Broncos weren't that competitive during their 10 years in the AFL."}, {"role": "user", "content": "I wonder why they weren't."}, {"role": "assistant", "content": "The first time they advanced to the playoffs was in 1977."}, {"role": "user", "content": "Were they successful in the playoffs?"}]