Why are the New England Patriots the greatest NFL team ever?
The New England Patriots dominance over the NFL has never been matched.  They have had the longest duration of success lasting over 20 years.  Since 2001 they have made the playoffs 18 times, winning the Division 17 times, winning the AFC championship 9 times and winning the Super Bowl 6 times
Instruction: Why are the New England Patriots the greatest NFL team ever?
Context: 
Response: The New England Patriots dominance over the NFL has never been matched.  They have had the longest duration of success lasting over 20 years.  Since 2001 they have made the playoffs 18 times, winning the Division 17 times, winning the AFC championship 9 times and winning the Super Bowl 6 times