history: My son plays football in high school, its a great sport.
knowledge: High school football is gridiron football played by high school teams in the United States and Canada.
response: Nice, did you know that high school football is actually gridiron football?
history: My son plays football in high school, its a great sport.
Nice, did you know that high school football is actually gridiron football?
Yeah in the south its a big deal.
knowledge: It ranks among the most popular interscholastic sports in both countries.
response: And it is one of the most popular interscholastic sports
history: My son plays football in high school, its a great sport.
Nice, did you know that high school football is actually gridiron football?
Yeah in the south its a big deal.
And it is one of the most popular interscholastic sports
I love the game and love watching my son play.  He is the tight end of our school team.
knowledge: High school football began in the late 19th century, concurrent with the start of many college football programs.
response: Did you also play football in high school? This sport began in the 19th century.
history: My son plays football in high school, its a great sport.
Nice, did you know that high school football is actually gridiron football?
Yeah in the south its a big deal.
And it is one of the most popular interscholastic sports
I love the game and love watching my son play.  He is the tight end of our school team.
Did you also play football in high school? This sport began in the 19th century.
Yeah its a old game, i wounder how much has change since the game started.
knowledge: In the late 19th and early 20th century, many college and high school teams played against one another.
response: I know that, back in the early 20th century, college and high school teams used to play against one another.